975464621 has 4 divisors (see below), whose sum is σ = 976218012. Its totient is φ = 974711232.

The previous prime is 975464593. The next prime is 975464647. The reversal of 975464621 is 126464579.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 567868900 + 407595721 = 23830^2 + 20189^2 .

It is a cyclic number.

It is not a de Polignac number, because 975464621 - 2⁶ = 975464557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975464671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374750 + ... + 377343.

It is an arithmetic number, because the mean of its divisors is an integer number (244054503).

Almost surely, 2^975464621 is an apocalyptic number.

It is an amenable number.

975464621 is a deficient number, since it is larger than the sum of its proper divisors (753391).

975464621 is a wasteful number, since it uses less digits than its factorization.

975464621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753390.

The product of its digits is 362880, while the sum is 44.

The square root of 975464621 is about 31232.4289961572. The cubic root of 975464621 is about 991.7537262205.

The spelling of 975464621 in words is "nine hundred seventy-five million, four hundred sixty-four thousand, six hundred twenty-one".