82931473 has 2 divisors, whose sum is σ = 82931474. Its totient is φ = 82931472.

The previous prime is 82931437. The next prime is 82931489. The reversal of 82931473 is 37413928.

Together with previous prime (82931437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48274704 + 34656769 = 6948^2 + 5887^2 .

It is a cyclic number.

It is not a de Polignac number, because 82931473 - 2¹⁷ = 82800401 is a prime.

It is not a weakly prime, because it can be changed into another prime (82931873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41465736 + 41465737.

It is an arithmetic number, because the mean of its divisors is an integer number (41465737).

Almost surely, 2^82931473 is an apocalyptic number.

It is an amenable number.

82931473 is a deficient number, since it is larger than the sum of its proper divisors (1).

82931473 is an equidigital number, since it uses as much as digits as its factorization.

82931473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 82931473 is about 9106.6718948252. The cubic root of 82931473 is about 436.0869860531.

The spelling of 82931473 in words is "eighty-two million, nine hundred thirty-one thousand, four hundred seventy-three".