76447866 has 16 divisors (see below), whose sum is σ = 166795488. Its totient is φ = 23166000.

The previous prime is 76447841. The next prime is 76447873. The reversal of 76447866 is 66874467.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 579085 + ... + 579216.

It is an arithmetic number, because the mean of its divisors is an integer number (10424718).

Almost surely, 2^76447866 is an apocalyptic number.

76447866 is an abundant number, since it is smaller than the sum of its proper divisors (90347622).

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

76447866 is a wasteful number, since it uses less digits than its factorization.

76447866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158317.

The product of its digits is 1354752, while the sum is 48.

The square root of 76447866 is about 8743.4470319205. The cubic root of 76447866 is about 424.4127825633.

The spelling of 76447866 in words is "seventy-six million, four hundred forty-seven thousand, eight hundred sixty-six".