1898479 has 4 divisors (see below), whose sum is σ = 2071080. Its totient is φ = 1725880.

The previous prime is 1898467. The next prime is 1898483. The reversal of 1898479 is 9748981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9748981 = 11 ⋅886271.

It is a cyclic number.

It is not a de Polignac number, because 1898479 - 2⁵ = 1898447 is a prime.

1898479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86284 + ... + 86305.

It is an arithmetic number, because the mean of its divisors is an integer number (517770).

2^1898479 is an apocalyptic number.

1898479 is a deficient number, since it is larger than the sum of its proper divisors (172601).

1898479 is a wasteful number, since it uses less digits than its factorization.

1898479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172600.

The product of its digits is 145152, while the sum is 46.

The square root of 1898479 is about 1377.8530400591. The cubic root of 1898479 is about 123.8231740820.

It can be divided in two parts, 189 and 8479, that added together give a palindrome (8668).

The spelling of 1898479 in words is "one million, eight hundred ninety-eight thousand, four hundred seventy-nine".