76490881 has 4 divisors (see below), whose sum is σ = 77459200. Its totient is φ = 75522564.

The previous prime is 76490861. The next prime is 76490923. The reversal of 76490881 is 18809467.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18809467 = 31 ⋅606757.

It is a cyclic number.

It is not a de Polignac number, because 76490881 - 2⁵ = 76490849 is a prime.

It is a super-2 number, since 2×76490881² = 11701709752312322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76490861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484041 + ... + 484198.

It is an arithmetic number, because the mean of its divisors is an integer number (19364800).

Almost surely, 2^76490881 is an apocalyptic number.

It is an amenable number.

76490881 is a deficient number, since it is larger than the sum of its proper divisors (968319).

76490881 is an equidigital number, since it uses as much as digits as its factorization.

76490881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968318.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 76490881 is about 8745.9065281993. The cubic root of 76490881 is about 424.4923692315.

The spelling of 76490881 in words is "seventy-six million, four hundred ninety thousand, eight hundred eighty-one".