1895997 has 8 divisors (see below), whose sum is σ = 2534560. Its totient is φ = 1260720.

The previous prime is 1895989. The next prime is 1896001. The reversal of 1895997 is 7995981.

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

It is not a de Polignac number, because 1895997 - 2³ = 1895989 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 (1895797) 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, 1347 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (316820).

2^1895997 is an apocalyptic number.

It is an amenable number.

1895997 is a deficient number, since it is larger than the sum of its proper divisors (638563).

1895997 is a wasteful number, since it uses less digits than its factorization.

1895997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643.

The product of its digits is 204120, while the sum is 48.

The square root of 1895997 is about 1376.9520688826. The cubic root of 1895997 is about 123.7691899635.

The spelling of 1895997 in words is "one million, eight hundred ninety-five thousand, nine hundred ninety-seven".