975379621 has 8 divisors (see below), whose sum is σ = 998585280. Its totient is φ = 952197792.

The previous prime is 975379577. The next prime is 975379631. The reversal of 975379621 is 126973579.

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

It is a cyclic number.

It is not a de Polignac number, because 975379621 - 2¹¹ = 975377573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975379631) 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, 98160 + ... + 107638.

It is an arithmetic number, because the mean of its divisors is an integer number (124823160).

Almost surely, 2^975379621 is an apocalyptic number.

It is an amenable number.

975379621 is a deficient number, since it is larger than the sum of its proper divisors (23205659).

975379621 is a wasteful number, since it uses less digits than its factorization.

975379621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915.

The product of its digits is 714420, while the sum is 49.

The square root of 975379621 is about 31231.0682013920. The cubic root of 975379621 is about 991.7249189172.

The spelling of 975379621 in words is "nine hundred seventy-five million, three hundred seventy-nine thousand, six hundred twenty-one".