82657707 has 8 divisors (see below), whose sum is σ = 120229440. Its totient is φ = 50095560.

The previous prime is 82657669. The next prime is 82657709. The reversal of 82657707 is 70775628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82657707 - 2²⁰ = 81609131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82657709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252357 + ... + 1252422.

It is an arithmetic number, because the mean of its divisors is an integer number (15028680).

Almost surely, 2^82657707 is an apocalyptic number.

82657707 is a deficient number, since it is larger than the sum of its proper divisors (37571733).

82657707 is a wasteful number, since it uses less digits than its factorization.

82657707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504793.

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 82657707 is about 9091.6284019971. The cubic root of 82657707 is about 435.6065998759.

The spelling of 82657707 in words is "eighty-two million, six hundred fifty-seven thousand, seven hundred seven".