80639466 has 16 divisors (see below), whose sum is σ = 170766144. Its totient is φ = 25298624.

The previous prime is 80639431. The next prime is 80639467. The reversal of 80639466 is 66493608.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80639467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395190 + ... + 395393.

It is an arithmetic number, because the mean of its divisors is an integer number (10672884).

Almost surely, 2^80639466 is an apocalyptic number.

80639466 is an abundant number, since it is smaller than the sum of its proper divisors (90126678).

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

80639466 is a wasteful number, since it uses less digits than its factorization.

80639466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790605.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 80639466 is about 8979.9479953951. The cubic root of 80639466 is about 432.0319656559.

The spelling of 80639466 in words is "eighty million, six hundred thirty-nine thousand, four hundred sixty-six".