80999238 has 16 divisors (see below), whose sum is σ = 169042176. Its totient is φ = 25825800.

The previous prime is 80999227. The next prime is 80999257. The reversal of 80999238 is 83299908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293338 + ... + 293613.

It is an arithmetic number, because the mean of its divisors is an integer number (10565136).

Almost surely, 2^80999238 is an apocalyptic number.

80999238 is an abundant number, since it is smaller than the sum of its proper divisors (88042938).

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

80999238 is a wasteful number, since it uses less digits than its factorization.

80999238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586979.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 80999238 is about 8999.9576665671. The cubic root of 80999238 is about 432.6735143050.

The spelling of 80999238 in words is "eighty million, nine hundred ninety-nine thousand, two hundred thirty-eight".