2687013 has 30 divisors (see below), whose sum is σ = 4676166. Its totient is φ = 1533168.

The previous prime is 2686993. The next prime is 2687023. The reversal of 2687013 is 3107862.

2687013 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in only one way, i.e., 2683044 + 3969 = 1638^2 + 63^2 .

It is not a de Polignac number, because 2687013 - 2⁶ = 2686949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687023) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3631 + ... + 4307.

2^2687013 is an apocalyptic number.

It is an amenable number.

2687013 is a deficient number, since it is larger than the sum of its proper divisors (1989153).

2687013 is an equidigital number, since it uses as much as digits as its factorization.

2687013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2687013 is about 1639.2110907385. The cubic root of 2687013 is about 139.0240456650.

The spelling of 2687013 in words is "two million, six hundred eighty-seven thousand, thirteen".