77422023 has 24 divisors (see below), whose sum is σ = 128256128. Its totient is φ = 44086032.

The previous prime is 77422013. The next prime is 77422031. The reversal of 77422023 is 32022477.

It is not a de Polignac number, because 77422023 - 2⁵ = 77421991 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77422003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17340 + ... + 21342.

Almost surely, 2^77422023 is an apocalyptic number.

77422023 is a deficient number, since it is larger than the sum of its proper divisors (50834105).

77422023 is a wasteful number, since it uses less digits than its factorization.

77422023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 77422023 is about 8798.9785202602. The cubic root of 77422023 is about 426.2079094898.

The spelling of 77422023 in words is "seventy-seven million, four hundred twenty-two thousand, twenty-three".