77332423 has 4 divisors (see below), whose sum is σ = 88379920. Its totient is φ = 66284928.

The previous prime is 77332403. The next prime is 77332427. The reversal of 77332423 is 32423377.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77332423 - 2²⁵ = 43777991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77332427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5523738 + ... + 5523751.

It is an arithmetic number, because the mean of its divisors is an integer number (22094980).

Almost surely, 2^77332423 is an apocalyptic number.

77332423 is a deficient number, since it is larger than the sum of its proper divisors (11047497).

77332423 is a wasteful number, since it uses less digits than its factorization.

77332423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11047496.

The product of its digits is 21168, while the sum is 31.

The square root of 77332423 is about 8793.8855462190. The cubic root of 77332423 is about 426.0434301494.

The spelling of 77332423 in words is "seventy-seven million, three hundred thirty-two thousand, four hundred twenty-three".