80417859 has 4 divisors (see below), whose sum is σ = 107223816. Its totient is φ = 53611904.

The previous prime is 80417849. The next prime is 80417863. The reversal of 80417859 is 95871408.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80417859 - 2⁷ = 80417731 is a prime.

It is a super-2 number, since 2×80417859² = 12934064092287762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80417859.

It is not an unprimeable number, because it can be changed into a prime (80417849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13402974 + ... + 13402979.

It is an arithmetic number, because the mean of its divisors is an integer number (26805954).

Almost surely, 2^80417859 is an apocalyptic number.

80417859 is a deficient number, since it is larger than the sum of its proper divisors (26805957).

80417859 is a wasteful number, since it uses less digits than its factorization.

80417859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26805956.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 80417859 is about 8967.6005151880. The cubic root of 80417859 is about 431.6358438824.

The spelling of 80417859 in words is "eighty million, four hundred seventeen thousand, eight hundred fifty-nine".