80684493 has 8 divisors (see below), whose sum is σ = 107830656. Its totient is φ = 53664000.

The previous prime is 80684489. The next prime is 80684509. The reversal of 80684493 is 39448608.

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

It is not a de Polignac number, because 80684493 - 2² = 80684489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80684453) 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, 29908 + ... + 32493.

It is an arithmetic number, because the mean of its divisors is an integer number (13478832).

Almost surely, 2^80684493 is an apocalyptic number.

It is an amenable number.

80684493 is a deficient number, since it is larger than the sum of its proper divisors (27146163).

80684493 is a wasteful number, since it uses less digits than its factorization.

80684493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62835.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 80684493 is about 8982.4547313081. The cubic root of 80684493 is about 432.1123625331.

It can be divided in two parts, 8068 and 4493, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 80684493 in words is "eighty million, six hundred eighty-four thousand, four hundred ninety-three".