76990872 has 64 divisors (see below), whose sum is σ = 222796800. Its totient is φ = 21715200.

The previous prime is 76990871. The next prime is 76990873. The reversal of 76990872 is 27809967.

It is an interprime number because it is at equal distance from previous prime (76990871) and next prime (76990873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76990871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10372 + ... + 16172.

It is an arithmetic number, because the mean of its divisors is an integer number (3481200).

Almost surely, 2^76990872 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 76990872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111398400).

76990872 is an abundant number, since it is smaller than the sum of its proper divisors (145805928).

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

76990872 is a wasteful number, since it uses less digits than its factorization.

76990872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5892 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 76990872 is about 8774.4442559059. Note that the first 3 decimals coincide. The cubic root of 76990872 is about 425.4152748338.

The spelling of 76990872 in words is "seventy-six million, nine hundred ninety thousand, eight hundred seventy-two".