2297998 has 4 divisors (see below), whose sum is σ = 3447000. Its totient is φ = 1148998.

The previous prime is 2297987. The next prime is 2298007. The reversal of 2297998 is 8997922.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574498 + ... + 574501.

It is an arithmetic number, because the mean of its divisors is an integer number (861750).

2^2297998 is an apocalyptic number.

2297998 is a deficient number, since it is larger than the sum of its proper divisors (1149002).

2297998 is a wasteful number, since it uses less digits than its factorization.

2297998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149001.

The product of its digits is 163296, while the sum is 46.

The square root of 2297998 is about 1515.9149052635. The cubic root of 2297998 is about 131.9623017538.

The spelling of 2297998 in words is "two million, two hundred ninety-seven thousand, nine hundred ninety-eight".