80401716 has 18 divisors (see below), whose sum is σ = 203237762. Its totient is φ = 26800560.

The previous prime is 80401709. The next prime is 80401733. The reversal of 80401716 is 61710408.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65610000 + 14791716 = 8100^2 + 3846^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80401716.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1116655 + ... + 1116726.

Almost surely, 2^80401716 is an apocalyptic number.

It is an amenable number.

80401716 is an abundant number, since it is smaller than the sum of its proper divisors (122836046).

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

80401716 is a wasteful number, since it uses less digits than its factorization.

80401716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233391 (or 2233386 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 80401716 is about 8966.7003964669. The cubic root of 80401716 is about 431.6069599015.

The spelling of 80401716 in words is "eighty million, four hundred one thousand, seven hundred sixteen".