82913731 has 2 divisors, whose sum is σ = 82913732. Its totient is φ = 82913730.

The previous prime is 82913717. The next prime is 82913771. The reversal of 82913731 is 13731928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82913731 - 2²¹ = 80816579 is a prime.

It is a super-2 number, since 2×82913731² = 13749373576680722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82913771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41456865 + 41456866.

It is an arithmetic number, because the mean of its divisors is an integer number (41456866).

Almost surely, 2^82913731 is an apocalyptic number.

82913731 is a deficient number, since it is larger than the sum of its proper divisors (1).

82913731 is an equidigital number, since it uses as much as digits as its factorization.

82913731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 82913731 is about 9105.6977217564. The cubic root of 82913731 is about 436.0558856484.

The spelling of 82913731 in words is "eighty-two million, nine hundred thirteen thousand, seven hundred thirty-one".