975279261 has 16 divisors (see below), whose sum is σ = 1420147008. Its totient is φ = 590428800.

The previous prime is 975279257. The next prime is 975279271. The reversal of 975279261 is 162972579.

It is not a de Polignac number, because 975279261 - 2² = 975279257 is a prime.

It is a super-2 number, since 2×975279261² = 1902339273873412242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 975279261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975279211) 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, 15151 + ... + 46691.

It is an arithmetic number, because the mean of its divisors is an integer number (88759188).

Almost surely, 2^975279261 is an apocalyptic number.

It is an amenable number.

975279261 is a deficient number, since it is larger than the sum of its proper divisors (444867747).

975279261 is a wasteful number, since it uses less digits than its factorization.

975279261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32492.

The product of its digits is 476280, while the sum is 48.

The square root of 975279261 is about 31229.4614266721. The cubic root of 975279261 is about 991.6909038102.

The spelling of 975279261 in words is "nine hundred seventy-five million, two hundred seventy-nine thousand, two hundred sixty-one".