77226923 has 4 divisors (see below), whose sum is σ = 77991648. Its totient is φ = 76462200.

The previous prime is 77226917. The next prime is 77226943. The reversal of 77226923 is 32962277.

It is a happy number.

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 77226923 - 2²⁴ = 60449707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77226943) 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, 382211 + ... + 382412.

It is an arithmetic number, because the mean of its divisors is an integer number (19497912).

Almost surely, 2^77226923 is an apocalyptic number.

77226923 is a deficient number, since it is larger than the sum of its proper divisors (764725).

77226923 is a wasteful number, since it uses less digits than its factorization.

77226923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764724.

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

The square root of 77226923 is about 8787.8850129027. The cubic root of 77226923 is about 425.8496001214.

The spelling of 77226923 in words is "seventy-seven million, two hundred twenty-six thousand, nine hundred twenty-three".