77938182 has 48 divisors (see below), whose sum is σ = 193639680. Its totient is φ = 22193136.

The previous prime is 77938153. The next prime is 77938199. The reversal of 77938182 is 28183977.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44373 + ... + 46095.

It is an arithmetic number, because the mean of its divisors is an integer number (4034160).

Almost surely, 2^77938182 is an apocalyptic number.

77938182 is an abundant number, since it is smaller than the sum of its proper divisors (115701498).

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

77938182 is a wasteful number, since it uses less digits than its factorization.

77938182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2094 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 77938182 is about 8828.2604175455. The cubic root of 77938182 is about 427.1529634595.

The spelling of 77938182 in words is "seventy-seven million, nine hundred thirty-eight thousand, one hundred eighty-two".