80621572 has 12 divisors (see below), whose sum is σ = 141198400. Its totient is φ = 40279176.

The previous prime is 80621561. The next prime is 80621609. The reversal of 80621572 is 27512608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1608 + ... + 12799.

Almost surely, 2^80621572 is an apocalyptic number.

It is an amenable number.

80621572 is a deficient number, since it is larger than the sum of its proper divisors (60576828).

80621572 is a wasteful number, since it uses less digits than its factorization.

80621572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15810 (or 15808 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80621572 is about 8978.9516091802. The cubic root of 80621572 is about 432.0000071445. Note that the first 5 decimals are identical.

The spelling of 80621572 in words is "eighty million, six hundred twenty-one thousand, five hundred seventy-two".