77945376 has 24 divisors (see below), whose sum is σ = 204606864. Its totient is φ = 25981760.

The previous prime is 77945341. The next prime is 77945389. The reversal of 77945376 is 67354977.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405870 + ... + 406061.

It is an arithmetic number, because the mean of its divisors is an integer number (8525286).

Almost surely, 2^77945376 is an apocalyptic number.

It is an amenable number.

77945376 is an abundant number, since it is smaller than the sum of its proper divisors (126661488).

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

77945376 is a wasteful number, since it uses less digits than its factorization.

77945376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811944 (or 811936 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 48.

The square root of 77945376 is about 8828.6678496815. The cubic root of 77945376 is about 427.1661056866.

The spelling of 77945376 in words is "seventy-seven million, nine hundred forty-five thousand, three hundred seventy-six".