76639463 has 2 divisors, whose sum is σ = 76639464. Its totient is φ = 76639462.

The previous prime is 76639441. The next prime is 76639481. The reversal of 76639463 is 36493667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76639463 - 2⁶ = 76639399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76639403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38319731 + 38319732.

It is an arithmetic number, because the mean of its divisors is an integer number (38319732).

Almost surely, 2^76639463 is an apocalyptic number.

76639463 is a deficient number, since it is larger than the sum of its proper divisors (1).

76639463 is an equidigital number, since it uses as much as digits as its factorization.

76639463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 44.

The square root of 76639463 is about 8754.3967810467. The cubic root of 76639463 is about 424.7670474230.

The spelling of 76639463 in words is "seventy-six million, six hundred thirty-nine thousand, four hundred sixty-three".