825992731 has 2 divisors, whose sum is σ = 825992732. Its totient is φ = 825992730.

The previous prime is 825992701. The next prime is 825992747. The reversal of 825992731 is 137299528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825992731 - 2¹³ = 825984539 is a prime.

It is a super-2 number, since 2×825992731² = 1364527983329676722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (825992701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412996365 + 412996366.

It is an arithmetic number, because the mean of its divisors is an integer number (412996366).

Almost surely, 2^825992731 is an apocalyptic number.

825992731 is a deficient number, since it is larger than the sum of its proper divisors (1).

825992731 is an equidigital number, since it uses as much as digits as its factorization.

825992731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 825992731 is about 28740.0892656930. The cubic root of 825992731 is about 938.2647672827.

The spelling of 825992731 in words is "eight hundred twenty-five million, nine hundred ninety-two thousand, seven hundred thirty-one".