975879865 has 8 divisors (see below), whose sum is σ = 1181419848. Its totient is φ = 773794560.

The previous prime is 975879833. The next prime is 975879893. The reversal of 975879865 is 568978579.

It can be written as a sum of positive squares in 4 ways, for example, as 127148176 + 848731689 = 11276^2 + 29133^2 .

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

It is not a de Polignac number, because 975879865 - 2⁵ = 975879833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 975879797 and 975879806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863046 + ... + 864175.

It is an arithmetic number, because the mean of its divisors is an integer number (147677481).

Almost surely, 2^975879865 is an apocalyptic number.

It is an amenable number.

975879865 is a deficient number, since it is larger than the sum of its proper divisors (205539983).

975879865 is a wasteful number, since it uses less digits than its factorization.

975879865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727339.

The product of its digits is 38102400, while the sum is 64.

The square root of 975879865 is about 31239.0759306353. The cubic root of 975879865 is about 991.8944322846.

The spelling of 975879865 in words is "nine hundred seventy-five million, eight hundred seventy-nine thousand, eight hundred sixty-five".