2651839 has 4 divisors (see below), whose sum is σ = 2716560. Its totient is φ = 2587120.

The previous prime is 2651837. The next prime is 2651867. The reversal of 2651839 is 9381562.

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 2651839 - 2¹ = 2651837 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 (2651837) 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, 32299 + ... + 32380.

It is an arithmetic number, because the mean of its divisors is an integer number (679140).

2^2651839 is an apocalyptic number.

2651839 is a deficient number, since it is larger than the sum of its proper divisors (64721).

2651839 is an equidigital number, since it uses as much as digits as its factorization.

2651839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64720.

The product of its digits is 12960, while the sum is 34.

The square root of 2651839 is about 1628.4468060087. The cubic root of 2651839 is about 138.4147537648.

The spelling of 2651839 in words is "two million, six hundred fifty-one thousand, eight hundred thirty-nine".