1898473 has 4 divisors (see below), whose sum is σ = 1902160. Its totient is φ = 1894788.

The previous prime is 1898467. The next prime is 1898483. The reversal of 1898473 is 3748981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1898473 - 2¹⁷ = 1767401 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1898483) 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, 915 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (475540).

2^1898473 is an apocalyptic number.

It is an amenable number.

1898473 is a deficient number, since it is larger than the sum of its proper divisors (3687).

1898473 is an equidigital number, since it uses as much as digits as its factorization.

1898473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686.

The product of its digits is 48384, while the sum is 40.

The square root of 1898473 is about 1377.8508627569. The cubic root of 1898473 is about 123.8230436372.

The spelling of 1898473 in words is "one million, eight hundred ninety-eight thousand, four hundred seventy-three".