2687331 has 4 divisors (see below), whose sum is σ = 3583112. Its totient is φ = 1791552.

The previous prime is 2687329. The next prime is 2687353. The reversal of 2687331 is 1337862.

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

It is not a de Polignac number, because 2687331 - 2¹ = 2687329 is a prime.

It is a super-2 number, since 2×2687331² = 14443495807122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2687231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447886 + ... + 447891.

It is an arithmetic number, because the mean of its divisors is an integer number (895778).

2^2687331 is an apocalyptic number.

2687331 is a deficient number, since it is larger than the sum of its proper divisors (895781).

2687331 is an equidigital number, since it uses as much as digits as its factorization.

2687331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895780.

The product of its digits is 6048, while the sum is 30.

The square root of 2687331 is about 1639.3080857484. The cubic root of 2687331 is about 139.0295298095.

The spelling of 2687331 in words is "two million, six hundred eighty-seven thousand, three hundred thirty-one".