2638495 has 4 divisors (see below), whose sum is σ = 3166200. Its totient is φ = 2110792.

The previous prime is 2638477. The next prime is 2638501. The reversal of 2638495 is 5948362.

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

It is a cyclic number.

It is not a de Polignac number, because 2638495 - 2⁷ = 2638367 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6⁵ + 3¹² + 8⁷ + 4³ + 9 + 5 .

It is a congruent number.

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, 263845 + ... + 263854.

It is an arithmetic number, because the mean of its divisors is an integer number (791550).

2^2638495 is an apocalyptic number.

2638495 is a deficient number, since it is larger than the sum of its proper divisors (527705).

2638495 is an equidigital number, since it uses as much as digits as its factorization.

2638495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527704.

The product of its digits is 51840, while the sum is 37.

The square root of 2638495 is about 1624.3444831685. The cubic root of 2638495 is about 138.1821965096.

The spelling of 2638495 in words is "two million, six hundred thirty-eight thousand, four hundred ninety-five".