76897560 has 128 divisors (see below), whose sum is σ = 251424000. Its totient is φ = 18740736.

The previous prime is 76897547. The next prime is 76897603. The reversal of 76897560 is 6579867.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65539 + ... + 66701.

It is an arithmetic number, because the mean of its divisors is an integer number (1964250).

Almost surely, 2^76897560 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 76897560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125712000).

76897560 is an abundant number, since it is smaller than the sum of its proper divisors (174526440).

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

76897560 is a wasteful number, since it uses less digits than its factorization.

76897560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 76897560 is about 8769.1253839821. The cubic root of 76897560 is about 425.2433393084.

The spelling of 76897560 in words is "seventy-six million, eight hundred ninety-seven thousand, five hundred sixty".