8412389 has 4 divisors (see below), whose sum is σ = 8591424. Its totient is φ = 8233356.

The previous prime is 8412379. The next prime is 8412401. The reversal of 8412389 is 9832148.

It is a happy number.

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 8412389 - 2¹² = 8408293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8412329) 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, 89447 + ... + 89540.

It is an arithmetic number, because the mean of its divisors is an integer number (2147856).

Almost surely, 2^8412389 is an apocalyptic number.

It is an amenable number.

8412389 is a deficient number, since it is larger than the sum of its proper divisors (179035).

8412389 is a wasteful number, since it uses less digits than its factorization.

8412389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179034.

The product of its digits is 13824, while the sum is 35.

The square root of 8412389 is about 2900.4118673044. The cubic root of 8412389 is about 203.3791598463.

The spelling of 8412389 in words is "eight million, four hundred twelve thousand, three hundred eighty-nine".