82785023 has 2 divisors, whose sum is σ = 82785024. Its totient is φ = 82785022.

The previous prime is 82785013. The next prime is 82785047. The reversal of 82785023 is 32058728.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82785023 - 2⁴ = 82785007 is a prime.

It is a super-2 number, since 2×82785023² = 13706720066221058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82785013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41392511 + 41392512.

It is an arithmetic number, because the mean of its divisors is an integer number (41392512).

Almost surely, 2^82785023 is an apocalyptic number.

82785023 is a deficient number, since it is larger than the sum of its proper divisors (1).

82785023 is an equidigital number, since it uses as much as digits as its factorization.

82785023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 82785023 is about 9098.6275338647. The cubic root of 82785023 is about 435.8301371670.

The spelling of 82785023 in words is "eighty-two million, seven hundred eighty-five thousand, twenty-three".