76888393 has 4 divisors (see below), whose sum is σ = 77233408. Its totient is φ = 76543380.

The previous prime is 76888363. The next prime is 76888397. The reversal of 76888393 is 39388867.

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 a de Polignac number, because none of the positive numbers 2^k-76888393 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 76888393.

It is not an unprimeable number, because it can be changed into a prime (76888397) 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, 172173 + ... + 172618.

It is an arithmetic number, because the mean of its divisors is an integer number (19308352).

Almost surely, 2^76888393 is an apocalyptic number.

It is an amenable number.

76888393 is a deficient number, since it is larger than the sum of its proper divisors (345015).

76888393 is a wasteful number, since it uses less digits than its factorization.

76888393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345014.

The product of its digits is 1741824, while the sum is 52.

The square root of 76888393 is about 8768.6026822978. The cubic root of 76888393 is about 425.2264408068.

The spelling of 76888393 in words is "seventy-six million, eight hundred eighty-eight thousand, three hundred ninety-three".