2586398 has 4 divisors (see below), whose sum is σ = 3879600. Its totient is φ = 1293198.

The previous prime is 2586391. The next prime is 2586421. The reversal of 2586398 is 8936852.

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

It is a super-2 number, since 2×2586398² = 13378909228808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2586391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646598 + ... + 646601.

It is an arithmetic number, because the mean of its divisors is an integer number (969900).

2^2586398 is an apocalyptic number.

2586398 is a deficient number, since it is larger than the sum of its proper divisors (1293202).

2586398 is a wasteful number, since it uses less digits than its factorization.

2586398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293201.

The product of its digits is 103680, while the sum is 41.

The square root of 2586398 is about 1608.2282176358. The cubic root of 2586398 is about 137.2666764739.

The spelling of 2586398 in words is "two million, five hundred eighty-six thousand, three hundred ninety-eight".