2898639 has 8 divisors (see below), whose sum is σ = 4294320. Its totient is φ = 1932408.

The previous prime is 2898613. The next prime is 2898661. The reversal of 2898639 is 9368982.

2898639 is a `hidden beast` number, since 2 + 8 + 9 + 8 + 639 = 666.

It is not a de Polignac number, because 2898639 - 2⁵ = 2898607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2898594 and 2898603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2898239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53652 + ... + 53705.

It is an arithmetic number, because the mean of its divisors is an integer number (536790).

2^2898639 is an apocalyptic number.

2898639 is a deficient number, since it is larger than the sum of its proper divisors (1395681).

2898639 is a wasteful number, since it uses less digits than its factorization.

2898639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107366 (or 107360 counting only the distinct ones).

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

The square root of 2898639 is about 1702.5389863378. The cubic root of 2898639 is about 142.5820026634.

The spelling of 2898639 in words is "two million, eight hundred ninety-eight thousand, six hundred thirty-nine".