77800374 has 12 divisors (see below), whose sum is σ = 168567516. Its totient is φ = 25933452.

The previous prime is 77800367. The next prime is 77800399. The reversal of 77800374 is 47300877.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2161104 + ... + 2161139.

It is an arithmetic number, because the mean of its divisors is an integer number (14047293).

Almost surely, 2^77800374 is an apocalyptic number.

77800374 is an abundant number, since it is smaller than the sum of its proper divisors (90767142).

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

77800374 is a wasteful number, since it uses less digits than its factorization.

77800374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322251 (or 4322248 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 77800374 is about 8820.4520292330. The cubic root of 77800374 is about 426.9010551620.

The spelling of 77800374 in words is "seventy-seven million, eight hundred thousand, three hundred seventy-four".