2632639 has 4 divisors (see below), whose sum is σ = 2677320. Its totient is φ = 2587960.

The previous prime is 2632633. The next prime is 2632657. The reversal of 2632639 is 9362362.

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 2632639 - 2¹¹ = 2630591 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹¹ + 6³ + 3⁵ + 2²¹ + 6⁴ + 3⁵ + 9⁶ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2632639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2632633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22252 + ... + 22369.

It is an arithmetic number, because the mean of its divisors is an integer number (669330).

2^2632639 is an apocalyptic number.

2632639 is a deficient number, since it is larger than the sum of its proper divisors (44681).

2632639 is an equidigital number, since it uses as much as digits as its factorization.

2632639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44680.

The product of its digits is 11664, while the sum is 31.

The square root of 2632639 is about 1622.5409085752. The cubic root of 2632639 is about 138.0798914282.

The spelling of 2632639 in words is "two million, six hundred thirty-two thousand, six hundred thirty-nine".