80910612 has 36 divisors (see below), whose sum is σ = 206830260. Its totient is φ = 26666112.

The previous prime is 80910611. The next prime is 80910647. The reversal of 80910612 is 21601908.

It can be written as a sum of positive squares in 2 ways, for example, as 50041476 + 30869136 = 7074^2 + 5556^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80910611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9423 + ... + 15830.

It is an arithmetic number, because the mean of its divisors is an integer number (5745285).

Almost surely, 2^80910612 is an apocalyptic number.

It is an amenable number.

80910612 is an abundant number, since it is smaller than the sum of its proper divisors (125919648).

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

80910612 is a wasteful number, since it uses less digits than its factorization.

80910612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25352 (or 25347 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 80910612 is about 8995.0326291793. The cubic root of 80910612 is about 432.5156522563.

The spelling of 80910612 in words is "eighty million, nine hundred ten thousand, six hundred twelve".