3799297521 has 16 divisors (see below), whose sum is σ = 5631859200. Its totient is φ = 2531393424.

The previous prime is 3799297519. The next prime is 3799297549. The reversal of 3799297521 is 1257929973.

3799297521 is a `hidden beast` number, since 3 + 7 + 99 + 29 + 7 + 521 = 666.

It is not a de Polignac number, because 3799297521 - 2¹ = 3799297519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3799297591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7495 + ... + 87491.

It is an arithmetic number, because the mean of its divisors is an integer number (351991200).

Almost surely, 2^3799297521 is an apocalyptic number.

It is an amenable number.

3799297521 is a deficient number, since it is larger than the sum of its proper divisors (1832561679).

3799297521 is a wasteful number, since it uses less digits than its factorization.

3799297521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81765 (or 81759 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 3799297521 is about 61638.4419092501. The cubic root of 3799297521 is about 1560.3945858361.

The spelling of 3799297521 in words is "three billion, seven hundred ninety-nine million, two hundred ninety-seven thousand, five hundred twenty-one".