2539684 has 12 divisors (see below), whose sum is σ = 5079424. Its totient is φ = 1088424.

The previous prime is 2539661. The next prime is 2539699. The reversal of 2539684 is 4869352.

2539684 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45324 + ... + 45379.

2^2539684 is an apocalyptic number.

It is an amenable number.

2539684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2539684 is a wasteful number, since it uses less digits than its factorization.

2539684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90714 (or 90712 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 2539684 is about 1593.6386039501. The cubic root of 2539684 is about 136.4352405626.

It can be divided in two parts, 2539 and 684, that added together give a palindrome (3223).

The spelling of 2539684 in words is "two million, five hundred thirty-nine thousand, six hundred eighty-four".