2687438 has 12 divisors (see below), whose sum is σ = 4365648. Its totient is φ = 1240200.

The previous prime is 2687423. The next prime is 2687467. The reversal of 2687438 is 8347862.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 8⁵ + 7⁵ + 4⁷ + 3 + 8⁷ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3638 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (363804).

2^2687438 is an apocalyptic number.

2687438 is a deficient number, since it is larger than the sum of its proper divisors (1678210).

2687438 is a wasteful number, since it uses less digits than its factorization.

2687438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979 (or 7966 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 2687438 is about 1639.3407211437. The cubic root of 2687438 is about 139.0313750061.

It can be divided in two parts, 2687 and 438, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2687438 in words is "two million, six hundred eighty-seven thousand, four hundred thirty-eight".