80117643 has 16 divisors (see below), whose sum is σ = 109714176. Its totient is φ = 51975840.

The previous prime is 80117621. The next prime is 80117647. The reversal of 80117643 is 34671108.

It is a happy number.

It is not a de Polignac number, because 80117643 - 2⁹ = 80117131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80117643.

It is not an unprimeable number, because it can be changed into a prime (80117647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39121 + ... + 41117.

It is an arithmetic number, because the mean of its divisors is an integer number (6857136).

Almost surely, 2^80117643 is an apocalyptic number.

80117643 is a deficient number, since it is larger than the sum of its proper divisors (29596533).

80117643 is a wasteful number, since it uses less digits than its factorization.

80117643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 80117643 is about 8950.8459376754. The cubic root of 80117643 is about 431.0980463595.

The spelling of 80117643 in words is "eighty million, one hundred seventeen thousand, six hundred forty-three".