80779056 has 40 divisors (see below), whose sum is σ = 215414784. Its totient is φ = 26057280.

The previous prime is 80779037. The next prime is 80779081. The reversal of 80779056 is 65097708.

It is a super-2 number, since 2×80779056² = 13050511776502272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80778999 and 80779017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25656 + ... + 28631.

Almost surely, 2^80779056 is an apocalyptic number.

It is an amenable number.

80779056 is an abundant number, since it is smaller than the sum of its proper divisors (134635728).

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

80779056 is a wasteful number, since it uses less digits than its factorization.

80779056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54329 (or 54323 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 80779056 is about 8987.7169514844. The cubic root of 80779056 is about 432.2811099042.

The spelling of 80779056 in words is "eighty million, seven hundred seventy-nine thousand, fifty-six".