80990910 has 384 divisors, whose sum is σ = 301916160. Its totient is φ = 14515200.

The previous prime is 80990909. The next prime is 80990927. The reversal of 80990910 is 1909908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2612595 + ... + 2612625.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^80990910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80990910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150958080).

80990910 is an abundant number, since it is smaller than the sum of its proper divisors (220925250).

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

80990910 is a wasteful number, since it uses less digits than its factorization.

80990910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 80990910 is about 8999.4949858311. The cubic root of 80990910 is about 432.6586852416.

It can be divided in two parts, 809 and 90910, that added together give a palindrome (91719).

The spelling of 80990910 in words is "eighty million, nine hundred ninety thousand, nine hundred ten".