2489837 has 20 divisors (see below), whose sum is σ = 3125916. Its totient is φ = 1975680.

The previous prime is 2489831. The next prime is 2489849. The reversal of 2489837 is 7389842.

It can be written as a sum of positive squares in 2 ways, for example, as 866761 + 1623076 = 931^2 + 1274^2 .

It is not a de Polignac number, because 2489837 - 2¹⁴ = 2473453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2489794 and 2489803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40787 + ... + 40847.

2^2489837 is an apocalyptic number.

It is an amenable number.

2489837 is a deficient number, since it is larger than the sum of its proper divisors (636079).

2489837 is an frugal number, since it uses more digits than its factorization.

2489837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 85 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 2489837 is about 1577.9217344343. The cubic root of 2489837 is about 135.5367202124.

Subtracting from 2489837 its sum of digits (41), we obtain a triangular number (2489796 = T₂₂₃₁).

The spelling of 2489837 in words is "two million, four hundred eighty-nine thousand, eight hundred thirty-seven".