80057779 has 16 divisors (see below), whose sum is σ = 88104960. Its totient is φ = 72499680.

The previous prime is 80057771. The next prime is 80057801. The reversal of 80057779 is 97775008.

It is not a de Polignac number, because 80057779 - 2³ = 80057771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80057771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32317 + ... + 34705.

It is an arithmetic number, because the mean of its divisors is an integer number (5506560).

Almost surely, 2^80057779 is an apocalyptic number.

80057779 is a deficient number, since it is larger than the sum of its proper divisors (8047181).

80057779 is a wasteful number, since it uses less digits than its factorization.

80057779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490.

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 80057779 is about 8947.5012713047. The cubic root of 80057779 is about 430.9906472778.

The spelling of 80057779 in words is "eighty million, fifty-seven thousand, seven hundred seventy-nine".