82860657 has 16 divisors (see below), whose sum is σ = 120676800. Its totient is φ = 50155200.

The previous prime is 82860647. The next prime is 82860667. The reversal of 82860657 is 75606828.

It is an interprime number because it is at equal distance from previous prime (82860647) and next prime (82860667).

It is not a de Polignac number, because 82860657 - 2⁴ = 82860641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82860607) 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 in 15 ways as a sum of consecutive naturals, for example, 50307 + ... + 51927.

It is an arithmetic number, because the mean of its divisors is an integer number (7542300).

Almost surely, 2^82860657 is an apocalyptic number.

It is an amenable number.

82860657 is a deficient number, since it is larger than the sum of its proper divisors (37816143).

82860657 is a wasteful number, since it uses less digits than its factorization.

82860657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 82860657 is about 9102.7829261166. The cubic root of 82860657 is about 435.9628243841.

The spelling of 82860657 in words is "eighty-two million, eight hundred sixty thousand, six hundred fifty-seven".