80978416 has 20 divisors (see below), whose sum is σ = 157036824. Its totient is φ = 40452800.

The previous prime is 80978393. The next prime is 80978419. The reversal of 80978416 is 61487908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80978419) 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, 29586 + ... + 32206.

Almost surely, 2^80978416 is an apocalyptic number.

It is an amenable number.

80978416 is a deficient number, since it is larger than the sum of its proper divisors (76058408).

80978416 is a wasteful number, since it uses less digits than its factorization.

80978416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560 (or 4554 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 80978416 is about 8998.8008089967. The cubic root of 80978416 is about 432.6364361785.

The spelling of 80978416 in words is "eighty million, nine hundred seventy-eight thousand, four hundred sixteen".