1890095 has 4 divisors (see below), whose sum is σ = 2268120. Its totient is φ = 1512072.

The previous prime is 1890089. The next prime is 1890103. The reversal of 1890095 is 5900981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1890095 - 2⁴ = 1890079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189005 + ... + 189014.

It is an arithmetic number, because the mean of its divisors is an integer number (567030).

2^1890095 is an apocalyptic number.

1890095 is a deficient number, since it is larger than the sum of its proper divisors (378025).

1890095 is an equidigital number, since it uses as much as digits as its factorization.

1890095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378024.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1890095 is about 1374.8072592185. The cubic root of 1890095 is about 123.6406305051.

The spelling of 1890095 in words is "one million, eight hundred ninety thousand, ninety-five".