2563398 has 24 divisors (see below), whose sum is σ = 5660928. Its totient is φ = 838032.

The previous prime is 2563387. The next prime is 2563409. The reversal of 2563398 is 8933652.

2563398 is a `hidden beast` number, since 2 + 563 + 3 + 98 = 666.

2563398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2563387) and next prime (2563409).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (235872).

2^2563398 is an apocalyptic number.

2563398 is an abundant number, since it is smaller than the sum of its proper divisors (3097530).

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

2563398 is a wasteful number, since it uses less digits than its factorization.

2563398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748 (or 2745 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2563398 is about 1601.0615228654. The cubic root of 2563398 is about 136.8585749979.

The spelling of 2563398 in words is "two million, five hundred sixty-three thousand, three hundred ninety-eight".