76812066 has 12 divisors (see below), whose sum is σ = 166426182. Its totient is φ = 25604016.

The previous prime is 76812031. The next prime is 76812067. The reversal of 76812066 is 66021867.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49406841 + 27405225 = 7029^2 + 5235^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 76812066.

It is not an unprimeable number, because it can be changed into a prime (76812067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2133651 + ... + 2133686.

Almost surely, 2^76812066 is an apocalyptic number.

76812066 is an abundant number, since it is smaller than the sum of its proper divisors (89614116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76812066 is a wasteful number, since it uses less digits than its factorization.

76812066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267345 (or 4267342 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 76812066 is about 8764.2493118350. The cubic root of 76812066 is about 425.0856869905.

The spelling of 76812066 in words is "seventy-six million, eight hundred twelve thousand, sixty-six".