2839689 has 6 divisors (see below), whose sum is σ = 4101786. Its totient is φ = 1893120.

The previous prime is 2839657. The next prime is 2839691. The reversal of 2839689 is 9869382.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 166464 = 1635^2 + 408^2 .

It is not a de Polignac number, because 2839689 - 2⁵ = 2839657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2839699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157752 + ... + 157769.

It is an arithmetic number, because the mean of its divisors is an integer number (683631).

2^2839689 is an apocalyptic number.

It is an amenable number.

2839689 is a deficient number, since it is larger than the sum of its proper divisors (1262097).

2839689 is a wasteful number, since it uses less digits than its factorization.

2839689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315527 (or 315524 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 2839689 is about 1685.1376798351. The cubic root of 2839689 is about 141.6088055905.

The spelling of 2839689 in words is "two million, eight hundred thirty-nine thousand, six hundred eighty-nine".