80621392 has 40 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 38704512.

The previous prime is 80621381. The next prime is 80621393. The reversal of 80621392 is 29312608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80621393) 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 7 ways as a sum of consecutive naturals, for example, 110533 + ... + 111259.

It is an arithmetic number, because the mean of its divisors is an integer number (4062240).

Almost surely, 2^80621392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80621392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81244800).

80621392 is an abundant number, since it is smaller than the sum of its proper divisors (81868208).

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

80621392 is a wasteful number, since it uses less digits than its factorization.

80621392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 80621392 is about 8978.9415857327. The cubic root of 80621392 is about 431.9996856422. Note that the first 3 decimals are identical.

The spelling of 80621392 in words is "eighty million, six hundred twenty-one thousand, three hundred ninety-two".