2639741 has 4 divisors (see below), whose sum is σ = 2842812. Its totient is φ = 2436672.

The previous prime is 2639723. The next prime is 2639759. The reversal of 2639741 is 1479362.

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

It is an interprime number because it is at equal distance from previous prime (2639723) and next prime (2639759).

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 2114116 = 725^2 + 1454^2 .

It is a cyclic number.

It is not a de Polignac number, because 2639741 - 2¹⁰ = 2638717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2639698 and 2639707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639701) 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, 101516 + ... + 101541.

It is an arithmetic number, because the mean of its divisors is an integer number (710703).

2^2639741 is an apocalyptic number.

It is an amenable number.

2639741 is a deficient number, since it is larger than the sum of its proper divisors (203071).

2639741 is a wasteful number, since it uses less digits than its factorization.

2639741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203070.

The product of its digits is 9072, while the sum is 32.

The square root of 2639741 is about 1624.7279772319. The cubic root of 2639741 is about 138.2039447564.

The spelling of 2639741 in words is "two million, six hundred thirty-nine thousand, seven hundred forty-one".