2639269 has 4 divisors (see below), whose sum is σ = 2649280. Its totient is φ = 2629260.

The previous prime is 2639251. The next prime is 2639291. The reversal of 2639269 is 9629362.

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 2639269 - 2¹¹ = 2637221 is a prime.

It is a super-2 number, since 2×2639269² = 13931481708722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 3⁷ + 9 + 2²¹ + 6⁵ + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639239) 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, 4599 + ... + 5140.

It is an arithmetic number, because the mean of its divisors is an integer number (662320).

2^2639269 is an apocalyptic number.

It is an amenable number.

2639269 is a deficient number, since it is larger than the sum of its proper divisors (10011).

2639269 is an equidigital number, since it uses as much as digits as its factorization.

2639269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010.

The product of its digits is 34992, while the sum is 37.

The square root of 2639269 is about 1624.5827156535. The cubic root of 2639269 is about 138.1957070606.

The spelling of 2639269 in words is "two million, six hundred thirty-nine thousand, two hundred sixty-nine".