80780764 has 12 divisors (see below), whose sum is σ = 141889888. Its totient is φ = 40240800.

The previous prime is 80780741. The next prime is 80780767. The reversal of 80780764 is 46708708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80780767) 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, 36177 + ... + 38344.

Almost surely, 2^80780764 is an apocalyptic number.

It is an amenable number.

80780764 is a deficient number, since it is larger than the sum of its proper divisors (61109124).

80780764 is a wasteful number, since it uses less digits than its factorization.

80780764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74796 (or 74794 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 80780764 is about 8987.8119695508. The cubic root of 80780764 is about 432.2841566136.

The spelling of 80780764 in words is "eighty million, seven hundred eighty thousand, seven hundred sixty-four".