2638825 has 24 divisors (see below), whose sum is σ = 3964032. Its totient is φ = 1701120.

The previous prime is 2638793. The next prime is 2638841. The reversal of 2638825 is 5288362.

It is not a de Polignac number, because 2638825 - 2⁵ = 2638793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2532 + ... + 3418.

It is an arithmetic number, because the mean of its divisors is an integer number (165168).

2^2638825 is an apocalyptic number.

2638825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2638825 is a deficient number, since it is larger than the sum of its proper divisors (1325207).

2638825 is a wasteful number, since it uses less digits than its factorization.

2638825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 916 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 2638825 is about 1624.4460594307. The cubic root of 2638825 is about 138.1879571451.

The spelling of 2638825 in words is "two million, six hundred thirty-eight thousand, eight hundred twenty-five".