1874389 has 8 divisors (see below), whose sum is σ = 2070432. Its totient is φ = 1682640.

The previous prime is 1874387. The next prime is 1874399. The reversal of 1874389 is 9834781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1874389 - 2¹ = 1874387 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1874389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1874387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (258804).

2^1874389 is an apocalyptic number.

It is an amenable number.

1874389 is a deficient number, since it is larger than the sum of its proper divisors (196043).

1874389 is a wasteful number, since it uses less digits than its factorization.

1874389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147.

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

The square root of 1874389 is about 1369.0832699292. The cubic root of 1874389 is about 123.2972079895.

The spelling of 1874389 in words is "one million, eight hundred seventy-four thousand, three hundred eighty-nine".