76506881 has 8 divisors (see below), whose sum is σ = 84024000. Its totient is φ = 69083440.

The previous prime is 76506841. The next prime is 76506883. The reversal of 76506881 is 18860567.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76506881 is a prime.

It is a super-2 number, since 2×76506881² = 11706605680696322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76506883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21701 + ... + 24978.

It is an arithmetic number, because the mean of its divisors is an integer number (10503000).

Almost surely, 2^76506881 is an apocalyptic number.

It is an amenable number.

76506881 is a deficient number, since it is larger than the sum of its proper divisors (7517119).

76506881 is a wasteful number, since it uses less digits than its factorization.

76506881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46839.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 76506881 is about 8746.8211940110. The cubic root of 76506881 is about 424.5219649355.

The spelling of 76506881 in words is "seventy-six million, five hundred six thousand, eight hundred eighty-one".