3890749361 has 4 divisors (see below), whose sum is σ = 3891110400. Its totient is φ = 3890388324.

The previous prime is 3890749337. The next prime is 3890749363. The reversal of 3890749361 is 1639470983.

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.

It is a cyclic number.

It is not a de Polignac number, because 3890749361 - 2⁶ = 3890749297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3890749363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163841 + ... + 186078.

It is an arithmetic number, because the mean of its divisors is an integer number (972777600).

Almost surely, 2^3890749361 is an apocalyptic number.

It is an amenable number.

3890749361 is a deficient number, since it is larger than the sum of its proper divisors (361039).

3890749361 is a wasteful number, since it uses less digits than its factorization.

3890749361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361038.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 3890749361 is about 62375.8716251725. The cubic root of 3890749361 is about 1572.8153954989.

The spelling of 3890749361 in words is "three billion, eight hundred ninety million, seven hundred forty-nine thousand, three hundred sixty-one".