76966966 has 16 divisors (see below), whose sum is σ = 117471744. Its totient is φ = 37813824.

The previous prime is 76966961. The next prime is 76966997. The reversal of 76966966 is 66966967.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76966961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45451 + ... + 47113.

It is an arithmetic number, because the mean of its divisors is an integer number (7341984).

Almost surely, 2^76966966 is an apocalyptic number.

76966966 is a deficient number, since it is larger than the sum of its proper divisors (40504778).

76966966 is a wasteful number, since it uses less digits than its factorization.

76966966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055.

The product of its digits is 4408992, while the sum is 55.

The square root of 76966966 is about 8773.0818986260. The cubic root of 76966966 is about 425.3712391792.

Subtracting from 76966966 its reverse (66966967), we obtain a palindrome (9999999).

The spelling of 76966966 in words is "seventy-six million, nine hundred sixty-six thousand, nine hundred sixty-six".