80644285 has 8 divisors (see below), whose sum is σ = 98136576. Its totient is φ = 63606480.

The previous prime is 80644271. The next prime is 80644297. The reversal of 80644285 is 58244608.

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

It is not a de Polignac number, because 80644285 - 2¹³ = 80636093 is a prime.

It is a super-2 number, since 2×80644285² = 13007001406322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113229 + ... + 113938.

It is an arithmetic number, because the mean of its divisors is an integer number (12267072).

Almost surely, 2^80644285 is an apocalyptic number.

It is an amenable number.

80644285 is a deficient number, since it is larger than the sum of its proper divisors (17492291).

80644285 is a wasteful number, since it uses less digits than its factorization.

80644285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227243.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 80644285 is about 8980.2163114259. The cubic root of 80644285 is about 432.0405715354.

The spelling of 80644285 in words is "eighty million, six hundred forty-four thousand, two hundred eighty-five".