2397898 has 4 divisors (see below), whose sum is σ = 3596850. Its totient is φ = 1198948.

The previous prime is 2397869. The next prime is 2397907. The reversal of 2397898 is 8987932.

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

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 332929 = 1437^2 + 577^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599473 + ... + 599476.

2^2397898 is an apocalyptic number.

2397898 is a deficient number, since it is larger than the sum of its proper divisors (1198952).

2397898 is a wasteful number, since it uses less digits than its factorization.

2397898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198951.

The product of its digits is 217728, while the sum is 46.

The square root of 2397898 is about 1548.5147722899. The cubic root of 2397898 is about 133.8474911534.

The spelling of 2397898 in words is "two million, three hundred ninety-seven thousand, eight hundred ninety-eight".