77834934 has 24 divisors (see below), whose sum is σ = 170384760. Its totient is φ = 25676928.

The previous prime is 77834873. The next prime is 77834941. The reversal of 77834934 is 43943877.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77834934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20544 + ... + 24035.

It is an arithmetic number, because the mean of its divisors is an integer number (7099365).

Almost surely, 2^77834934 is an apocalyptic number.

77834934 is an abundant number, since it is smaller than the sum of its proper divisors (92549826).

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

77834934 is a wasteful number, since it uses less digits than its factorization.

77834934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44684 (or 44681 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 77834934 is about 8822.4108949878. The cubic root of 77834934 is about 426.9642575848.

The spelling of 77834934 in words is "seventy-seven million, eight hundred thirty-four thousand, nine hundred thirty-four".