76381373 has 4 divisors (see below), whose sum is σ = 78157728. Its totient is φ = 74605020.

The previous prime is 76381369. The next prime is 76381379. The reversal of 76381373 is 37318367.

It is a happy number.

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 76381373 - 2² = 76381369 is a prime.

It is a super-2 number, since 2×76381373² = 11668228282730258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76381379) 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, 888113 + ... + 888198.

It is an arithmetic number, because the mean of its divisors is an integer number (19539432).

Almost surely, 2^76381373 is an apocalyptic number.

It is an amenable number.

76381373 is a deficient number, since it is larger than the sum of its proper divisors (1776355).

76381373 is a wasteful number, since it uses less digits than its factorization.

76381373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776354.

The product of its digits is 63504, while the sum is 38.

The square root of 76381373 is about 8739.6437570418. The cubic root of 76381373 is about 424.2896979634.

The spelling of 76381373 in words is "seventy-six million, three hundred eighty-one thousand, three hundred seventy-three".