2639317 has 4 divisors (see below), whose sum is σ = 2671200. Its totient is φ = 2607436.

The previous prime is 2639303. The next prime is 2639323. The reversal of 2639317 is 7139362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2639317 - 2¹¹ = 2637269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630317) 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, 15817 + ... + 15982.

It is an arithmetic number, because the mean of its divisors is an integer number (667800).

2^2639317 is an apocalyptic number.

It is an amenable number.

2639317 is a deficient number, since it is larger than the sum of its proper divisors (31883).

2639317 is an equidigital number, since it uses as much as digits as its factorization.

2639317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31882.

The product of its digits is 6804, while the sum is 31.

The square root of 2639317 is about 1624.5974886106. The cubic root of 2639317 is about 138.1965448372.

The spelling of 2639317 in words is "two million, six hundred thirty-nine thousand, three hundred seventeen".