2195887 has 8 divisors (see below), whose sum is σ = 2361600. Its totient is φ = 2035224.

The previous prime is 2195867. The next prime is 2195891. The reversal of 2195887 is 7885912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2195887 - 2⁷ = 2195759 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (295200).

2^2195887 is an apocalyptic number.

2195887 is a deficient number, since it is larger than the sum of its proper divisors (165713).

2195887 is a wasteful number, since it uses less digits than its factorization.

2195887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525.

The product of its digits is 40320, while the sum is 40.

The square root of 2195887 is about 1481.8525567680. The cubic root of 2195887 is about 129.9780436292.

The spelling of 2195887 in words is "two million, one hundred ninety-five thousand, eight hundred eighty-seven".