77463923 has 2 divisors, whose sum is σ = 77463924. Its totient is φ = 77463922.

The previous prime is 77463913. The next prime is 77463929. The reversal of 77463923 is 32936477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77463923 - 2²⁴ = 60686707 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (77463929) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38731961 + 38731962.

It is an arithmetic number, because the mean of its divisors is an integer number (38731962).

Almost surely, 2^77463923 is an apocalyptic number.

77463923 is a deficient number, since it is larger than the sum of its proper divisors (1).

77463923 is an equidigital number, since it uses as much as digits as its factorization.

77463923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 41.

The square root of 77463923 is about 8801.3591564031. The cubic root of 77463923 is about 426.2847820649.

The spelling of 77463923 in words is "seventy-seven million, four hundred sixty-three thousand, nine hundred twenty-three".