76947860 has 48 divisors (see below), whose sum is σ = 178077312. Its totient is φ = 27696000.

The previous prime is 76947851. The next prime is 76947877. The reversal of 76947860 is 6874967.

It is a happy number.

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, 20489 + ... + 23951.

It is an arithmetic number, because the mean of its divisors is an integer number (3709944).

Almost surely, 2^76947860 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 76947860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89038656).

76947860 is an abundant number, since it is smaller than the sum of its proper divisors (101129452).

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

76947860 is a wasteful number, since it uses less digits than its factorization.

76947860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584 (or 3582 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 76947860 is about 8771.9929320537. The cubic root of 76947860 is about 425.3360387294.

The spelling of 76947860 in words is "seventy-six million, nine hundred forty-seven thousand, eight hundred sixty".