76442563 has 2 divisors, whose sum is σ = 76442564. Its totient is φ = 76442562.

The previous prime is 76442543. The next prime is 76442581. The reversal of 76442563 is 36524467.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76442563 is a prime.

It is not a weakly prime, because it can be changed into another prime (76442543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38221281 + 38221282.

It is an arithmetic number, because the mean of its divisors is an integer number (38221282).

Almost surely, 2^76442563 is an apocalyptic number.

76442563 is a deficient number, since it is larger than the sum of its proper divisors (1).

76442563 is an equidigital number, since it uses as much as digits as its factorization.

76442563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 37.

The square root of 76442563 is about 8743.1437709785. The cubic root of 76442563 is about 424.4029688469.

The spelling of 76442563 in words is "seventy-six million, four hundred forty-two thousand, five hundred sixty-three".