4198643 has 4 divisors (see below), whose sum is σ = 4445640. Its totient is φ = 3951648.

The previous prime is 4198637. The next prime is 4198669. The reversal of 4198643 is 3468914.

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

It is a cyclic number.

It is not a de Polignac number, because 4198643 - 2²² = 4339 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 1 + 9 + 8 + 6³ + 4¹¹ + 3² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4198343) 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, 123473 + ... + 123506.

It is an arithmetic number, because the mean of its divisors is an integer number (1111410).

Almost surely, 2^4198643 is an apocalyptic number.

4198643 is a deficient number, since it is larger than the sum of its proper divisors (246997).

4198643 is a wasteful number, since it uses less digits than its factorization.

4198643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246996.

The product of its digits is 20736, while the sum is 35.

The square root of 4198643 is about 2049.0590523457. The cubic root of 4198643 is about 161.3254863603.

The spelling of 4198643 in words is "four million, one hundred ninety-eight thousand, six hundred forty-three".