975421736 has 8 divisors (see below), whose sum is σ = 1828915770. Its totient is φ = 487710864.

The previous prime is 975421721. The next prime is 975421739. The reversal of 975421736 is 637124579.

It can be written as a sum of positive squares in only one way, i.e., 966836836 + 8584900 = 31094^2 + 2930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×975421736² = 1902895126122507392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (975421739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60963851 + ... + 60963866.

Almost surely, 2^975421736 is an apocalyptic number.

It is an amenable number.

975421736 is a deficient number, since it is larger than the sum of its proper divisors (853494034).

975421736 is a wasteful number, since it uses less digits than its factorization.

975421736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121927723 (or 121927719 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 975421736 is about 31231.7424425856. The cubic root of 975421736 is about 991.7391922979.

The spelling of 975421736 in words is "nine hundred seventy-five million, four hundred twenty-one thousand, seven hundred thirty-six".