77959463 has 2 divisors, whose sum is σ = 77959464. Its totient is φ = 77959462.

The previous prime is 77959457. The next prime is 77959523. The reversal of 77959463 is 36495977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77959463 - 2²⁰ = 76910887 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77959423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38979731 + 38979732.

It is an arithmetic number, because the mean of its divisors is an integer number (38979732).

Almost surely, 2^77959463 is an apocalyptic number.

77959463 is a deficient number, since it is larger than the sum of its proper divisors (1).

77959463 is an equidigital number, since it uses as much as digits as its factorization.

77959463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 50.

The square root of 77959463 is about 8829.4656123686. The cubic root of 77959463 is about 427.1918379227.

The spelling of 77959463 in words is "seventy-seven million, nine hundred fifty-nine thousand, four hundred sixty-three".