3997512494 has 16 divisors (see below), whose sum is σ = 6021183168. Its totient is φ = 1990467072.

The previous prime is 3997512473. The next prime is 3997512499. The reversal of 3997512494 is 4942157993.

It is a super-2 number, since 2×3997512494² = 31960212279372200072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997512499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601739 + ... + 608345.

It is an arithmetic number, because the mean of its divisors is an integer number (376323948).

Almost surely, 2^3997512494 is an apocalyptic number.

3997512494 is a deficient number, since it is larger than the sum of its proper divisors (2023670674).

3997512494 is a wasteful number, since it uses less digits than its factorization.

3997512494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819.

The product of its digits is 2449440, while the sum is 53.

The square root of 3997512494 is about 63225.8846834111. The cubic root of 3997512494 is about 1587.0719279305.

The spelling of 3997512494 in words is "three billion, nine hundred ninety-seven million, five hundred twelve thousand, four hundred ninety-four".