76118921 has 4 divisors (see below), whose sum is σ = 80125200. Its totient is φ = 72112644.

The previous prime is 76118899. The next prime is 76118923. The reversal of 76118921 is 12981167.

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.

It is a cyclic number.

It is not a de Polignac number, because 76118921 - 2¹⁰ = 76117897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76118923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003111 + ... + 2003148.

It is an arithmetic number, because the mean of its divisors is an integer number (20031300).

Almost surely, 2^76118921 is an apocalyptic number.

It is an amenable number.

76118921 is a deficient number, since it is larger than the sum of its proper divisors (4006279).

76118921 is a wasteful number, since it uses less digits than its factorization.

76118921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006278.

The product of its digits is 6048, while the sum is 35.

The square root of 76118921 is about 8724.6158081603. The cubic root of 76118921 is about 423.8031767888.

The spelling of 76118921 in words is "seventy-six million, one hundred eighteen thousand, nine hundred twenty-one".