2687834 has 4 divisors (see below), whose sum is σ = 4031754. Its totient is φ = 1343916.

The previous prime is 2687827. The next prime is 2687851. The reversal of 2687834 is 4387862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1697809 + 990025 = 1303^2 + 995^2 .

It is a super-2 number, since 2×2687834² = 14448903223112, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 6⁵ + 8 + 7⁷ + 8 + 3¹³ + 4⁹ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671957 + ... + 671960.

2^2687834 is an apocalyptic number.

2687834 is a deficient number, since it is larger than the sum of its proper divisors (1343920).

2687834 is a wasteful number, since it uses less digits than its factorization.

2687834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343919.

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

The square root of 2687834 is about 1639.4614969556. The cubic root of 2687834 is about 139.0382035321.

The spelling of 2687834 in words is "two million, six hundred eighty-seven thousand, eight hundred thirty-four".