1897234 has 16 divisors (see below), whose sum is σ = 3089016. Its totient is φ = 870400.

The previous prime is 1897229. The next prime is 1897237. The reversal of 1897234 is 4327981.

It can be written as a sum of positive squares in 4 ways, for example, as 1096209 + 801025 = 1047^2 + 895^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 1897234.

It is not an unprimeable number, because it can be changed into a prime (1897237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714 + ... + 2074.

2^1897234 is an apocalyptic number.

1897234 is a deficient number, since it is larger than the sum of its proper divisors (1191782).

1897234 is a wasteful number, since it uses less digits than its factorization.

1897234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421.

The product of its digits is 12096, while the sum is 34.

The square root of 1897234 is about 1377.4011761284. The cubic root of 1897234 is about 123.7961009070.

The spelling of 1897234 in words is "one million, eight hundred ninety-seven thousand, two hundred thirty-four".