825931937 has 2 divisors, whose sum is σ = 825931938. Its totient is φ = 825931936.

The previous prime is 825931891. The next prime is 825931943. The reversal of 825931937 is 739139528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487703056 + 338228881 = 22084^2 + 18391^2 .

It is a cyclic number.

It is not a de Polignac number, because 825931937 - 2⁸ = 825931681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 825931891 and 825931900.

It is not a weakly prime, because it can be changed into another prime (825931037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412965968 + 412965969.

It is an arithmetic number, because the mean of its divisors is an integer number (412965969).

Almost surely, 2^825931937 is an apocalyptic number.

It is an amenable number.

825931937 is a deficient number, since it is larger than the sum of its proper divisors (1).

825931937 is an equidigital number, since it uses as much as digits as its factorization.

825931937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 825931937 is about 28739.0315946797. The cubic root of 825931937 is about 938.2417476016.

The spelling of 825931937 in words is "eight hundred twenty-five million, nine hundred thirty-one thousand, nine hundred thirty-seven".