80189770 has 16 divisors (see below), whose sum is σ = 146320200. Its totient is φ = 31636224.

The previous prime is 80189719. The next prime is 80189771. The reversal of 80189770 is 7798108.

It can be written as a sum of positive squares in 4 ways, for example, as 49575681 + 30614089 = 7041^2 + 5533^2 .

It is not an unprimeable number, because it can be changed into a prime (80189771) 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, 54195 + ... + 55654.

Almost surely, 2^80189770 is an apocalyptic number.

80189770 is a deficient number, since it is larger than the sum of its proper divisors (66130430).

80189770 is a wasteful number, since it uses less digits than its factorization.

80189770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109929.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 80189770 is about 8954.8740918005. The cubic root of 80189770 is about 431.2273748545.

The spelling of 80189770 in words is "eighty million, one hundred eighty-nine thousand, seven hundred seventy".