76365021 has 4 divisors (see below), whose sum is σ = 101820032. Its totient is φ = 50910012.

The previous prime is 76365017. The next prime is 76365043. The reversal of 76365021 is 12056367.

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 not a de Polignac number, because 76365021 - 2² = 76365017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76365021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76360021) 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, 12727501 + ... + 12727506.

It is an arithmetic number, because the mean of its divisors is an integer number (25455008).

Almost surely, 2^76365021 is an apocalyptic number.

It is an amenable number.

76365021 is a deficient number, since it is larger than the sum of its proper divisors (25455011).

76365021 is a wasteful number, since it uses less digits than its factorization.

76365021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25455010.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 76365021 is about 8738.7081997284. The cubic root of 76365021 is about 424.2594179792.

The spelling of 76365021 in words is "seventy-six million, three hundred sixty-five thousand, twenty-one".