975221416 has 32 divisors (see below), whose sum is σ = 1991341800. Its totient is φ = 445040640.

The previous prime is 975221411. The next prime is 975221431. The reversal of 975221416 is 614122579.

It can be written as a sum of positive squares in 4 ways, for example, as 711288900 + 263932516 = 26670^2 + 16246^2 .

It is not an unprimeable number, because it can be changed into a prime (975221411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43425 + ... + 61936.

Almost surely, 2^975221416 is an apocalyptic number.

It is an amenable number.

975221416 is an abundant number, since it is smaller than the sum of its proper divisors (1016120384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

975221416 is a wasteful number, since it uses less digits than its factorization.

975221416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105469 (or 105465 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 975221416 is about 31228.5352842556. The cubic root of 975221416 is about 991.6712972910.

The spelling of 975221416 in words is "nine hundred seventy-five million, two hundred twenty-one thousand, four hundred sixteen".