80977044 has 12 divisors (see below), whose sum is σ = 188946464. Its totient is φ = 26992344.

The previous prime is 80977033. The next prime is 80977049. The reversal of 80977044 is 44077908.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 80976993 and 80977011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80977049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3374032 + ... + 3374055.

Almost surely, 2^80977044 is an apocalyptic number.

It is an amenable number.

80977044 is an abundant number, since it is smaller than the sum of its proper divisors (107969420).

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

80977044 is a wasteful number, since it uses less digits than its factorization.

80977044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748094 (or 6748092 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 80977044 is about 8998.7245762941. The cubic root of 80977044 is about 432.6339928091.

The spelling of 80977044 in words is "eighty million, nine hundred seventy-seven thousand, forty-four".