77223023 has 2 divisors, whose sum is σ = 77223024. Its totient is φ = 77223022.

The previous prime is 77223017. The next prime is 77223031. The reversal of 77223023 is 32032277.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77223023 - 2¹⁰ = 77221999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77222983 and 77223001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77223073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38611511 + 38611512.

It is an arithmetic number, because the mean of its divisors is an integer number (38611512).

Almost surely, 2^77223023 is an apocalyptic number.

77223023 is a deficient number, since it is larger than the sum of its proper divisors (1).

77223023 is an equidigital number, since it uses as much as digits as its factorization.

77223023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 77223023 is about 8787.6631137066. The cubic root of 77223023 is about 425.8424314582.

The spelling of 77223023 in words is "seventy-seven million, two hundred twenty-three thousand, twenty-three".