80886621 has 16 divisors (see below), whose sum is σ = 110549504. Its totient is φ = 52590384.

The previous prime is 80886613. The next prime is 80886647. The reversal of 80886621 is 12668808.

It is not a de Polignac number, because 80886621 - 2³ = 80886613 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80886621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80886601) 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, 18750 + ... + 22656.

It is an arithmetic number, because the mean of its divisors is an integer number (6909344).

Almost surely, 2^80886621 is an apocalyptic number.

It is an amenable number.

80886621 is a deficient number, since it is larger than the sum of its proper divisors (29662883).

80886621 is a wasteful number, since it uses less digits than its factorization.

80886621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 80886621 is about 8993.6989609393. The cubic root of 80886621 is about 432.4728992786.

The spelling of 80886621 in words is "eighty million, eight hundred eighty-six thousand, six hundred twenty-one".