80873221 has 32 divisors (see below), whose sum is σ = 100896768. Its totient is φ = 63771840.

The previous prime is 80873209. The next prime is 80873227. The reversal of 80873221 is 12237808.

It is a de Polignac number, because none of the positive numbers 2^k-80873221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80873227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220180 + ... + 220546.

It is an arithmetic number, because the mean of its divisors is an integer number (3153024).

Almost surely, 2^80873221 is an apocalyptic number.

It is an amenable number.

80873221 is a deficient number, since it is larger than the sum of its proper divisors (20023547).

80873221 is a wasteful number, since it uses less digits than its factorization.

80873221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 80873221 is about 8992.9539640765. The cubic root of 80873221 is about 432.4490162317.

The spelling of 80873221 in words is "eighty million, eight hundred seventy-three thousand, two hundred twenty-one".