77045916 has 24 divisors (see below), whose sum is σ = 179915904. Its totient is φ = 25661680.

The previous prime is 77045897. The next prime is 77045939. The reversal of 77045916 is 61954077.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27601 + ... + 30263.

It is an arithmetic number, because the mean of its divisors is an integer number (7496496).

Almost surely, 2^77045916 is an apocalyptic number.

It is an amenable number.

77045916 is an abundant number, since it is smaller than the sum of its proper divisors (102869988).

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

77045916 is a wasteful number, since it uses less digits than its factorization.

77045916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081 (or 5079 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 77045916 is about 8777.5803043891. The cubic root of 77045916 is about 425.5166330836.

The spelling of 77045916 in words is "seventy-seven million, forty-five thousand, nine hundred sixteen".