974625961 has 3 divisors (see below), whose sum is σ = 974657181. Its totient is φ = 974594742.

The previous prime is 974625959. The next prime is 974626001. The reversal of 974625961 is 169526479.

It is a happy number.

The square root of 974625961 is 31219.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 974625961 - 2¹ = 974625959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974620961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15610 + ... + 46828.

It is an arithmetic number, because the mean of its divisors is an integer number (324885727).

Almost surely, 2^974625961 is an apocalyptic number.

974625961 is the 31219-th square number.

974625961 is the 15610-th centered octagonal number.

It is an amenable number.

974625961 is a deficient number, since it is larger than the sum of its proper divisors (31220).

974625961 is an frugal number, since it uses more digits than its factorization.

974625961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62438 (or 31219 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The cubic root of 974625961 is about 991.4694231847.

Multiplying 974625961 by its sum of digits (49), we get a square (47756672089 = 218533²).

The spelling of 974625961 in words is "nine hundred seventy-four million, six hundred twenty-five thousand, nine hundred sixty-one".