80999094 has 96 divisors (see below), whose sum is σ = 189987840. Its totient is φ = 22968000.

The previous prime is 80999081. The next prime is 80999141. The reversal of 80999094 is 49099908.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1327824 + ... + 1327884.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^80999094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80999094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

80999094 is an abundant number, since it is smaller than the sum of its proper divisors (108988746).

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

80999094 is a wasteful number, since it uses less digits than its factorization.

80999094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 80999094 is about 8999.9496665259. The cubic root of 80999094 is about 432.6732579034.

The spelling of 80999094 in words is "eighty million, nine hundred ninety-nine thousand, ninety-four".