2563698 has 8 divisors (see below), whose sum is σ = 5127408. Its totient is φ = 854564.

The previous prime is 2563679. The next prime is 2563711. The reversal of 2563698 is 8963652.

It is a sphenic number, since it is the product of 3 distinct primes.

2563698 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213636 + ... + 213647.

It is an arithmetic number, because the mean of its divisors is an integer number (640926).

2^2563698 is an apocalyptic number.

2563698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2563698 is a wasteful number, since it uses less digits than its factorization.

2563698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427288.

The product of its digits is 77760, while the sum is 39.

The square root of 2563698 is about 1601.1552079670. The cubic root of 2563698 is about 136.8639137411.

The spelling of 2563698 in words is "two million, five hundred sixty-three thousand, six hundred ninety-eight".