1838897 has 4 divisors (see below), whose sum is σ = 1841700. Its totient is φ = 1836096.

The previous prime is 1838869. The next prime is 1838909. The reversal of 1838897 is 7988381.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 790321 + 1048576 = 889^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838897 - 2¹⁰ = 1837873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1838807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (460425).

2^1838897 is an apocalyptic number.

It is an amenable number.

1838897 is a deficient number, since it is larger than the sum of its proper divisors (2803).

1838897 is a wasteful number, since it uses less digits than its factorization.

1838897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802.

The product of its digits is 96768, while the sum is 44.

The square root of 1838897 is about 1356.0593644822. The cubic root of 1838897 is about 122.5140231066.

The spelling of 1838897 in words is "one million, eight hundred thirty-eight thousand, eight hundred ninety-seven".