80477764 has 6 divisors (see below), whose sum is σ = 140836094. Its totient is φ = 40238880.

The previous prime is 80477743. The next prime is 80477777. The reversal of 80477764 is 46777408.

It can be written as a sum of positive squares in only one way, i.e., 79959364 + 518400 = 8942^2 + 720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80477764.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10059717 + ... + 10059724.

Almost surely, 2^80477764 is an apocalyptic number.

It is an amenable number.

80477764 is a deficient number, since it is larger than the sum of its proper divisors (60358330).

80477764 is a wasteful number, since it uses less digits than its factorization.

80477764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20119445 (or 20119443 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 80477764 is about 8970.9399730463. The cubic root of 80477764 is about 431.7429955678.

The spelling of 80477764 in words is "eighty million, four hundred seventy-seven thousand, seven hundred sixty-four".