82917893 has 2 divisors, whose sum is σ = 82917894. Its totient is φ = 82917892.

The previous prime is 82917883. The next prime is 82917899. The reversal of 82917893 is 39871928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56220004 + 26697889 = 7498^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 82917893 - 2¹⁴ = 82901509 is a prime.

It is a super-4 number, since 4×82917893⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82917899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41458946 + 41458947.

It is an arithmetic number, because the mean of its divisors is an integer number (41458947).

Almost surely, 2^82917893 is an apocalyptic number.

It is an amenable number.

82917893 is a deficient number, since it is larger than the sum of its proper divisors (1).

82917893 is an equidigital number, since it uses as much as digits as its factorization.

82917893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 47.

The square root of 82917893 is about 9105.9262571141. The cubic root of 82917893 is about 436.0631817227.

The spelling of 82917893 in words is "eighty-two million, nine hundred seventeen thousand, eight hundred ninety-three".