80018835 has 16 divisors (see below), whose sum is σ = 137878944. Its totient is φ = 39393792.

The previous prime is 80018831. The next prime is 80018849. The reversal of 80018835 is 53881008.

It is not a de Polignac number, because 80018835 - 2² = 80018831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80018796 and 80018805.

It is not an unprimeable number, because it can be changed into a prime (80018831) 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, 204982 + ... + 205371.

It is an arithmetic number, because the mean of its divisors is an integer number (8617434).

Almost surely, 2^80018835 is an apocalyptic number.

80018835 is a deficient number, since it is larger than the sum of its proper divisors (57860109).

80018835 is a wasteful number, since it uses less digits than its factorization.

80018835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410374.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 80018835 is about 8945.3247565418. The cubic root of 80018835 is about 430.9207510007.

It can be divided in two parts, 8001 and 8835, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 80018835 in words is "eighty million, eighteen thousand, eight hundred thirty-five".