76636505 has 16 divisors (see below), whose sum is σ = 100510848. Its totient is φ = 55632000.

The previous prime is 76636471. The next prime is 76636507. The reversal of 76636505 is 50563667.

It is not a de Polignac number, because 76636505 - 2⁸ = 76636249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76636507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40940 + ... + 42770.

It is an arithmetic number, because the mean of its divisors is an integer number (6281928).

Almost surely, 2^76636505 is an apocalyptic number.

It is an amenable number.

76636505 is a deficient number, since it is larger than the sum of its proper divisors (23874343).

76636505 is a wasteful number, since it uses less digits than its factorization.

76636505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 76636505 is about 8754.2278357374. The cubic root of 76636505 is about 424.7615825400.

The spelling of 76636505 in words is "seventy-six million, six hundred thirty-six thousand, five hundred five".