970831 has 4 divisors (see below), whose sum is σ = 983200. Its totient is φ = 958464.

The previous prime is 970829. The next prime is 970847. The reversal of 970831 is 138079.

970831 = T₈₀₃ + T₈₀₄ + T₈₀₅.

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 970831 - 2¹ = 970829 is a prime.

It is a super-2 number, since 2×970831² = 1885025661122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 970831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6066 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (245800).

2⁹⁷⁰⁸³¹ is an apocalyptic number.

970831 is the 805-th centered triangular number.

970831 is a deficient number, since it is larger than the sum of its proper divisors (12369).

970831 is a wasteful number, since it uses less digits than its factorization.

970831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12368.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 970831 is about 985.3075661944. The cubic root of 970831 is about 99.0180900861.

The spelling of 970831 in words is "nine hundred seventy thousand, eight hundred thirty-one".