3958997499 has 16 divisors (see below), whose sum is σ = 5868324000. Its totient is φ = 2637917568.

The previous prime is 3958997489. The next prime is 3958997501. The reversal of 3958997499 is 9947998593.

3958997499 is a `hidden beast` number, since 39 + 589 + 9 + 7 + 4 + 9 + 9 = 666.

3958997499 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3958997499 - 2¹⁵ = 3958964731 is a prime.

It is a super-2 number, since 2×3958997499² = 31347322394176510002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3958997489) 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, 13327 + ... + 89975.

It is an arithmetic number, because the mean of its divisors is an integer number (366770250).

Almost surely, 2^3958997499 is an apocalyptic number.

3958997499 is a deficient number, since it is larger than the sum of its proper divisors (1909326501).

3958997499 is a wasteful number, since it uses less digits than its factorization.

3958997499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78571 (or 78565 counting only the distinct ones).

The product of its digits is 198404640, while the sum is 72.

The square root of 3958997499 is about 62920.5649926954. The cubic root of 3958997499 is about 1581.9584616350.

The spelling of 3958997499 in words is "three billion, nine hundred fifty-eight million, nine hundred ninety-seven thousand, four hundred ninety-nine".