76664755 has 16 divisors (see below), whose sum is σ = 94671360. Its totient is φ = 59569632.

The previous prime is 76664741. The next prime is 76664759. The reversal of 76664755 is 55746667.

It is a cyclic number.

It is not a de Polignac number, because 76664755 - 2⁵ = 76664723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76664759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31492 + ... + 33838.

It is an arithmetic number, because the mean of its divisors is an integer number (5916960).

Almost surely, 2^76664755 is an apocalyptic number.

76664755 is a deficient number, since it is larger than the sum of its proper divisors (18006605).

76664755 is a wasteful number, since it uses less digits than its factorization.

76664755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538.

The product of its digits is 1058400, while the sum is 46.

The square root of 76664755 is about 8755.8411931693. The cubic root of 76664755 is about 424.8137684644.

It can be divided in two parts, 7666 and 4755, that added together give a palindrome (12421).

The spelling of 76664755 in words is "seventy-six million, six hundred sixty-four thousand, seven hundred fifty-five".