2639003 has 4 divisors (see below), whose sum is σ = 2695200. Its totient is φ = 2582808.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2639003 is 3009362.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3009362 = 2 ⋅1504681.

It is a cyclic number.

It is not a de Polignac number, because 2639003 - 2⁸ = 2638747 is a prime.

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 2639003.

It is not an unprimeable number, because it can be changed into a prime (2639083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28028 + ... + 28121.

It is an arithmetic number, because the mean of its divisors is an integer number (673800).

2^2639003 is an apocalyptic number.

2639003 is a deficient number, since it is larger than the sum of its proper divisors (56197).

2639003 is an equidigital number, since it uses as much as digits as its factorization.

2639003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56196.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 2639003 is about 1624.5008464141. The cubic root of 2639003 is about 138.1910641976.

The spelling of 2639003 in words is "two million, six hundred thirty-nine thousand, three".