970903831 has 2 divisors, whose sum is σ = 970903832. Its totient is φ = 970903830.

The previous prime is 970903783. The next prime is 970903859. The reversal of 970903831 is 138309079.

It is a strong prime.

It is an emirp because it is prime and its reverse (138309079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 970903831 - 2⁹ = 970903319 is a prime.

It is a super-2 number, since 2×970903831² = 1885308498100953122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (970903331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485451915 + 485451916.

It is an arithmetic number, because the mean of its divisors is an integer number (485451916).

Almost surely, 2^970903831 is an apocalyptic number.

970903831 is a deficient number, since it is larger than the sum of its proper divisors (1).

970903831 is an equidigital number, since it uses as much as digits as its factorization.

970903831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 970903831 is about 31159.3297585170. The cubic root of 970903831 is about 990.2056611131.

The spelling of 970903831 in words is "nine hundred seventy million, nine hundred three thousand, eight hundred thirty-one".