7198859 has 4 divisors (see below), whose sum is σ = 7207704. Its totient is φ = 7190016.

The previous prime is 7198847. The next prime is 7198879. The reversal of 7198859 is 9588917.

It is a happy number.

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 7198859 - 2²⁰ = 6150283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7198879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062 + ... + 4875.

It is an arithmetic number, because the mean of its divisors is an integer number (1801926).

Almost surely, 2^7198859 is an apocalyptic number.

7198859 is a deficient number, since it is larger than the sum of its proper divisors (8845).

7198859 is an equidigital number, since it uses as much as digits as its factorization.

7198859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844.

The product of its digits is 181440, while the sum is 47.

The square root of 7198859 is about 2683.0689517789. The cubic root of 7198859 is about 193.0876761657.

The spelling of 7198859 in words is "seven million, one hundred ninety-eight thousand, eight hundred fifty-nine".