972931 has 4 divisors (see below), whose sum is σ = 975664. Its totient is φ = 970200.

The previous prime is 972901. The next prime is 972941. The reversal of 972931 is 139279.

972931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 972931 - 2⁵ = 972899 is a prime.

It is a super-2 number, since 2×972931² = 1893189461522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 972893 and 972902.

It is not an unprimeable number, because it can be changed into a prime (972901) 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, 735 + ... + 1576.

It is an arithmetic number, because the mean of its divisors is an integer number (243916).

2⁹⁷²⁹³¹ is an apocalyptic number.

972931 is a deficient number, since it is larger than the sum of its proper divisors (2733).

972931 is a wasteful number, since it uses less digits than its factorization.

972931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732.

The product of its digits is 3402, while the sum is 31.

The square root of 972931 is about 986.3726476337. The cubic root of 972931 is about 99.0894338590.

The spelling of 972931 in words is "nine hundred seventy-two thousand, nine hundred thirty-one".