77385023 has 2 divisors, whose sum is σ = 77385024. Its totient is φ = 77385022.

The previous prime is 77384977. The next prime is 77385059. The reversal of 77385023 is 32058377.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77385023 - 2¹⁴ = 77368639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77385073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38692511 + 38692512.

It is an arithmetic number, because the mean of its divisors is an integer number (38692512).

Almost surely, 2^77385023 is an apocalyptic number.

77385023 is a deficient number, since it is larger than the sum of its proper divisors (1).

77385023 is an equidigital number, since it uses as much as digits as its factorization.

77385023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 77385023 is about 8796.8757522202. The cubic root of 77385023 is about 426.1400037234.

The spelling of 77385023 in words is "seventy-seven million, three hundred eighty-five thousand, twenty-three".