82077618 has 32 divisors (see below), whose sum is σ = 192680064. Its totient is φ = 22816512.

The previous prime is 82077599. The next prime is 82077629. The reversal of 82077618 is 81677028.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24855 + ... + 27962.

It is an arithmetic number, because the mean of its divisors is an integer number (6021252).

Almost surely, 2^82077618 is an apocalyptic number.

82077618 is an abundant number, since it is smaller than the sum of its proper divisors (110602446).

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

82077618 is a wasteful number, since it uses less digits than its factorization.

82077618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52866.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 82077618 is about 9059.6698615347. The cubic root of 82077618 is about 434.5851825701.

The spelling of 82077618 in words is "eighty-two million, seventy-seven thousand, six hundred eighteen".