77270976 has 112 divisors (see below), whose sum is σ = 230002080. Its totient is φ = 25436160.

The previous prime is 77270951. The next prime is 77270983. The reversal of 77270976 is 67907277.

It is a congruent number.

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, 167386 + ... + 167846.

It is an arithmetic number, because the mean of its divisors is an integer number (2053590).

Almost surely, 2^77270976 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 77270976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115001040).

77270976 is an abundant number, since it is smaller than the sum of its proper divisors (152731104).

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

77270976 is a wasteful number, since it uses less digits than its factorization.

77270976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 259308, while the sum is 45.

The square root of 77270976 is about 8790.3911175783. The cubic root of 77270976 is about 425.9305580124.

The spelling of 77270976 in words is "seventy-seven million, two hundred seventy thousand, nine hundred seventy-six".