77493056 has 56 divisors (see below), whose sum is σ = 160446720. Its totient is φ = 37094400.

The previous prime is 77493047. The next prime is 77493061. The reversal of 77493056 is 65039477.

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, 275636 + ... + 275916.

It is an arithmetic number, because the mean of its divisors is an integer number (2865120).

Almost surely, 2^77493056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77493056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80223360).

77493056 is an abundant number, since it is smaller than the sum of its proper divisors (82953664).

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

77493056 is a wasteful number, since it uses less digits than its factorization.

77493056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 77493056 is about 8803.0140292970. The cubic root of 77493056 is about 426.3382151021.

The spelling of 77493056 in words is "seventy-seven million, four hundred ninety-three thousand, fifty-six".