972831 has 12 divisors (see below), whose sum is σ = 1358168. Its totient is φ = 619344.

The previous prime is 972827. The next prime is 972833. The reversal of 972831 is 138279.

It is a happy number.

It is not a de Polignac number, because 972831 - 2² = 972827 is a prime.

It is a super-2 number, since 2×972831² = 1892800309122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972833) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281 + ... + 1893.

2⁹⁷²⁸³¹ is an apocalyptic number.

972831 is a deficient number, since it is larger than the sum of its proper divisors (385337).

972831 is a wasteful number, since it uses less digits than its factorization.

972831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 639 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 972831 is about 986.3219555500. The cubic root of 972831 is about 99.0860388656.

The spelling of 972831 in words is "nine hundred seventy-two thousand, eight hundred thirty-one".