3946649029 has 4 divisors (see below), whose sum is σ = 4073960320. Its totient is φ = 3819337740.

The previous prime is 3946648997. The next prime is 3946649111. The reversal of 3946649029 is 9209466493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9209466493 = 547 ⋅16836319.

It is a cyclic number.

It is not a de Polignac number, because 3946649029 - 2⁵ = 3946648997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946640029) 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, 63655599 + ... + 63655660.

It is an arithmetic number, because the mean of its divisors is an integer number (1018490080).

Almost surely, 2^3946649029 is an apocalyptic number.

It is an amenable number.

3946649029 is a deficient number, since it is larger than the sum of its proper divisors (127311291).

3946649029 is a wasteful number, since it uses less digits than its factorization.

3946649029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127311290.

The product of its (nonzero) digits is 2519424, while the sum is 52.

The square root of 3946649029 is about 62822.3608996033. The cubic root of 3946649029 is about 1580.3119916124.

The spelling of 3946649029 in words is "three billion, nine hundred forty-six million, six hundred forty-nine thousand, twenty-nine".