2398643 has 4 divisors (see below), whose sum is σ = 2583168. Its totient is φ = 2214120.

The previous prime is 2398637. The next prime is 2398657. The reversal of 2398643 is 3468932.

It is a happy number.

2398643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398643 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 3 + 9 + 8⁵ + 6 + 4⁹ + 3⁸ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398603) 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 3 ways as a sum of consecutive naturals, for example, 92243 + ... + 92268.

It is an arithmetic number, because the mean of its divisors is an integer number (645792).

2^2398643 is an apocalyptic number.

2398643 is a deficient number, since it is larger than the sum of its proper divisors (184525).

2398643 is a wasteful number, since it uses less digits than its factorization.

2398643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184524.

The product of its digits is 31104, while the sum is 35.

The square root of 2398643 is about 1548.7553066899. The cubic root of 2398643 is about 133.8613513559.

The spelling of 2398643 in words is "two million, three hundred ninety-eight thousand, six hundred forty-three".