82730655 has 96 divisors (see below), whose sum is σ = 180311040. Its totient is φ = 34214400.

The previous prime is 82730651. The next prime is 82730663. The reversal of 82730655 is 55603728.

It is not a de Polignac number, because 82730655 - 2² = 82730651 is a prime.

It is a super-2 number, since 2×82730655² = 13688722553458050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82730651) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 137355 + ... + 137955.

It is an arithmetic number, because the mean of its divisors is an integer number (1878240).

Almost surely, 2^82730655 is an apocalyptic number.

82730655 is an abundant number, since it is smaller than the sum of its proper divisors (97580385).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82730655 is a wasteful number, since it uses less digits than its factorization.

82730655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 82730655 is about 9095.6393398155. The cubic root of 82730655 is about 435.7347076593.

The spelling of 82730655 in words is "eighty-two million, seven hundred thirty thousand, six hundred fifty-five".