77393023 has 8 divisors (see below), whose sum is σ = 81615600. Its totient is φ = 73185408.

The previous prime is 77393021. The next prime is 77393033. The reversal of 77393023 is 32039377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77393023 - 2¹ = 77393021 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 77393023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77393021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833 + ... + 14701.

It is an arithmetic number, because the mean of its divisors is an integer number (10201950).

Almost surely, 2^77393023 is an apocalyptic number.

77393023 is a deficient number, since it is larger than the sum of its proper divisors (4222577).

77393023 is a wasteful number, since it uses less digits than its factorization.

77393023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481.

The product of its (nonzero) digits is 23814, while the sum is 34.

The square root of 77393023 is about 8797.3304473573. The cubic root of 77393023 is about 426.1546878850.

The spelling of 77393023 in words is "seventy-seven million, three hundred ninety-three thousand, twenty-three".