76745646 has 24 divisors (see below), whose sum is σ = 171647424. Its totient is φ = 24756480.

The previous prime is 76745639. The next prime is 76745657. The reversal of 76745646 is 64654767.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 68211 + ... + 69326.

It is an arithmetic number, because the mean of its divisors is an integer number (7151976).

Almost surely, 2^76745646 is an apocalyptic number.

76745646 is an abundant number, since it is smaller than the sum of its proper divisors (94901778).

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

76745646 is a wasteful number, since it uses less digits than its factorization.

76745646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137576 (or 137573 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 76745646 is about 8760.4592345379. The cubic root of 76745646 is about 424.9631266741.

The spelling of 76745646 in words is "seventy-six million, seven hundred forty-five thousand, six hundred forty-six".