77083218 has 32 divisors (see below), whose sum is σ = 177206400. Its totient is φ = 24807888.

The previous prime is 77083217. The next prime is 77083229. The reversal of 77083218 is 81238077.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77083211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23046 + ... + 26177.

It is an arithmetic number, because the mean of its divisors is an integer number (5537700).

Almost surely, 2^77083218 is an apocalyptic number.

77083218 is an abundant number, since it is smaller than the sum of its proper divisors (100123182).

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

77083218 is a wasteful number, since it uses less digits than its factorization.

77083218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49263 (or 49257 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 77083218 is about 8779.7048925348. The cubic root of 77083218 is about 425.5852937013.

The spelling of 77083218 in words is "seventy-seven million, eighty-three thousand, two hundred eighteen".