2687895 has 72 divisors (see below), whose sum is σ = 5762016. Its totient is φ = 1153152.

The previous prime is 2687891. The next prime is 2687897. The reversal of 2687895 is 5987862.

It is not a de Polignac number, because 2687895 - 2² = 2687891 is a prime.

It is a super-3 number, since 3×2687895³ = 58258346332633327125, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2687895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687891) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50689 + ... + 50741.

It is an arithmetic number, because the mean of its divisors is an integer number (80028).

2^2687895 is an apocalyptic number.

2687895 is an abundant number, since it is smaller than the sum of its proper divisors (3074121).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2687895 is a wasteful number, since it uses less digits than its factorization.

2687895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 91 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2687895 is about 1639.4801005197. The cubic root of 2687895 is about 139.0392553413.

The spelling of 2687895 in words is "two million, six hundred eighty-seven thousand, eight hundred ninety-five".