76871808 has 256 divisors, whose sum is σ = 257040000. Its totient is φ = 22450176.

The previous prime is 76871797. The next prime is 76871827. The reversal of 76871808 is 80817867.

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, 1302883 + ... + 1302941.

Almost surely, 2^76871808 is an apocalyptic number.

76871808 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76871808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128520000).

76871808 is an abundant number, since it is smaller than the sum of its proper divisors (180168192).

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

76871808 is a wasteful number, since it uses less digits than its factorization.

76871808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 76871808 is about 8767.6569275947. The cubic root of 76871808 is about 425.1958645071.

The spelling of 76871808 in words is "seventy-six million, eight hundred seventy-one thousand, eight hundred eight".