2842687 has 4 divisors (see below), whose sum is σ = 2908840. Its totient is φ = 2776536.

The previous prime is 2842681. The next prime is 2842691. The reversal of 2842687 is 7862482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7862482 = 2 ⋅3931241.

It is a cyclic number.

It is not a de Polignac number, because 2842687 - 2⁷ = 2842559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842681) 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, 33012 + ... + 33097.

It is an arithmetic number, because the mean of its divisors is an integer number (727210).

2^2842687 is an apocalyptic number.

2842687 is a deficient number, since it is larger than the sum of its proper divisors (66153).

2842687 is an equidigital number, since it uses as much as digits as its factorization.

2842687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66152.

The product of its digits is 43008, while the sum is 37.

The square root of 2842687 is about 1686.0269867354. The cubic root of 2842687 is about 141.6586225344.

The spelling of 2842687 in words is "two million, eight hundred forty-two thousand, six hundred eighty-seven".