80639773 has 8 divisors (see below), whose sum is σ = 83344640. Its totient is φ = 77941440.

The previous prime is 80639747. The next prime is 80639813. The reversal of 80639773 is 37793608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80639773 - 2¹³ = 80631581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80639473) 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, 45286 + ... + 47032.

It is an arithmetic number, because the mean of its divisors is an integer number (10418080).

Almost surely, 2^80639773 is an apocalyptic number.

It is an amenable number.

80639773 is a deficient number, since it is larger than the sum of its proper divisors (2704867).

80639773 is a wasteful number, since it uses less digits than its factorization.

80639773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 80639773 is about 8979.9650890190. The cubic root of 80639773 is about 432.0325139137.

The spelling of 80639773 in words is "eighty million, six hundred thirty-nine thousand, seven hundred seventy-three".