76866866 has 8 divisors (see below), whose sum is σ = 115361904. Its totient is φ = 38412900.

The previous prime is 76866863. The next prime is 76866919. The reversal of 76866866 is 66866867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76866863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5060 + ... + 13391.

It is an arithmetic number, because the mean of its divisors is an integer number (14420238).

Almost surely, 2^76866866 is an apocalyptic number.

76866866 is a deficient number, since it is larger than the sum of its proper divisors (38495038).

76866866 is a wasteful number, since it uses less digits than its factorization.

76866866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20536.

The product of its digits is 3483648, while the sum is 53.

The square root of 76866866 is about 8767.3750917820. The cubic root of 76866866 is about 425.1867525277.

Subtracting from 76866866 its reverse (66866867), we obtain a palindrome (9999999).

The spelling of 76866866 in words is "seventy-six million, eight hundred sixty-six thousand, eight hundred sixty-six".