975997915 has 8 divisors (see below), whose sum is σ = 1193295888. Its totient is φ = 766066080.

The previous prime is 975997873. The next prime is 975997949. The reversal of 975997915 is 519799579.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 975997915 - 2⁷ = 975997787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1841241 + ... + 1841770.

It is an arithmetic number, because the mean of its divisors is an integer number (149161986).

Almost surely, 2^975997915 is an apocalyptic number.

975997915 is a deficient number, since it is larger than the sum of its proper divisors (217297973).

975997915 is a wasteful number, since it uses less digits than its factorization.

975997915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683069.

The product of its digits is 8037225, while the sum is 61.

The square root of 975997915 is about 31240.9653339970. The cubic root of 975997915 is about 991.9344264207.

The spelling of 975997915 in words is "nine hundred seventy-five million, nine hundred ninety-seven thousand, nine hundred fifteen".