77926560 has 96 divisors (see below), whose sum is σ = 253435392. Its totient is φ = 20106240.

The previous prime is 77926549. The next prime is 77926571. The reversal of 77926560 is 6562977.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77926549) and next prime (77926571).

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12262 + ... + 17498.

It is an arithmetic number, because the mean of its divisors is an integer number (2639952).

Almost surely, 2^77926560 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 77926560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126717696).

77926560 is an abundant number, since it is smaller than the sum of its proper divisors (175508832).

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

77926560 is a wasteful number, since it uses less digits than its factorization.

77926560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286 (or 5278 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 77926560 is about 8827.6021659339. The cubic root of 77926560 is about 427.1317303129.

The spelling of 77926560 in words is "seventy-seven million, nine hundred twenty-six thousand, five hundred sixty".