2875639 has 4 divisors (see below), whose sum is σ = 3096856. Its totient is φ = 2654424.

The previous prime is 2875633. The next prime is 2875643. The reversal of 2875639 is 9365782.

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 2875639 - 2⁹ = 2875127 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 (2875633) 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, 110589 + ... + 110614.

It is an arithmetic number, because the mean of its divisors is an integer number (774214).

2^2875639 is an apocalyptic number.

2875639 is a deficient number, since it is larger than the sum of its proper divisors (221217).

2875639 is a wasteful number, since it uses less digits than its factorization.

2875639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221216.

The product of its digits is 90720, while the sum is 40.

The square root of 2875639 is about 1695.7709161322. The cubic root of 2875639 is about 142.2038828847.

The spelling of 2875639 in words is "two million, eight hundred seventy-five thousand, six hundred thirty-nine".