80505764 has 24 divisors (see below), whose sum is σ = 143555328. Its totient is φ = 39495680.

The previous prime is 80505757. The next prime is 80505779. The reversal of 80505764 is 46750508.

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 7 ways as a sum of consecutive naturals, for example, 72437 + ... + 73539.

It is an arithmetic number, because the mean of its divisors is an integer number (5981472).

Almost surely, 2^80505764 is an apocalyptic number.

It is an amenable number.

80505764 is a deficient number, since it is larger than the sum of its proper divisors (63049564).

80505764 is a wasteful number, since it uses less digits than its factorization.

80505764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 80505764 is about 8972.5004318752. The cubic root of 80505764 is about 431.7930607517.

The spelling of 80505764 in words is "eighty million, five hundred five thousand, seven hundred sixty-four".