1894997 has 6 divisors (see below), whose sum is σ = 2052162. Its totient is φ = 1749072.

The previous prime is 1894969. The next prime is 1895009. The reversal of 1894997 is 7994981.

It can be written as a sum of positive squares in 3 ways, for example, as 155236 + 1739761 = 394^2 + 1319^2 .

It is not a de Polignac number, because 1894997 - 2⁶ = 1894933 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 (1894397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5438 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (342027).

2^1894997 is an apocalyptic number.

It is an amenable number.

1894997 is a deficient number, since it is larger than the sum of its proper divisors (157165).

1894997 is a wasteful number, since it uses less digits than its factorization.

1894997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11239 (or 11226 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 1894997 is about 1376.5889001441. The cubic root of 1894997 is about 123.7474263996.

The spelling of 1894997 in words is "one million, eight hundred ninety-four thousand, nine hundred ninety-seven".