1881695 has 16 divisors (see below), whose sum is σ = 2364768. Its totient is φ = 1436160.

The previous prime is 1881641. The next prime is 1881697. The reversal of 1881695 is 5961881.

It is not a de Polignac number, because 1881695 - 2⁶ = 1881631 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 (1881697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13667 + ... + 13803.

It is an arithmetic number, because the mean of its divisors is an integer number (147798).

2^1881695 is an apocalyptic number.

1881695 is a deficient number, since it is larger than the sum of its proper divisors (483073).

1881695 is a wasteful number, since it uses less digits than its factorization.

1881695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 17280, while the sum is 38.

The square root of 1881695 is about 1371.7488837247. The cubic root of 1881695 is about 123.4571963976.

The spelling of 1881695 in words is "one million, eight hundred eighty-one thousand, six hundred ninety-five".