3946610749 has 4 divisors (see below), whose sum is σ = 3990954780. Its totient is φ = 3902266720.

The previous prime is 3946610693. The next prime is 3946610777. The reversal of 3946610749 is 9470166493.

3946610749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9470166493 = 443 ⋅21377351.

It can be written as a sum of positive squares in 2 ways, for example, as 2086845124 + 1859765625 = 45682^2 + 43125^2 .

It is a cyclic number.

It is not a de Polignac number, because 3946610749 - 2²¹ = 3944513597 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946610449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22171882 + ... + 22172059.

It is an arithmetic number, because the mean of its divisors is an integer number (997738695).

Almost surely, 2^3946610749 is an apocalyptic number.

It is an amenable number.

3946610749 is a deficient number, since it is larger than the sum of its proper divisors (44344031).

3946610749 is an equidigital number, since it uses as much as digits as its factorization.

3946610749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44344030.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3946610749 is about 62822.0562302763. The cubic root of 3946610749 is about 1580.3068822536.

The spelling of 3946610749 in words is "three billion, nine hundred forty-six million, six hundred ten thousand, seven hundred forty-nine".