9042643 has 4 divisors (see below), whose sum is σ = 9049320. Its totient is φ = 9035968.

The previous prime is 9042641. The next prime is 9042647. The reversal of 9042643 is 3462409.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3462409 = 41 ⋅84449.

It is a cyclic number.

It is not a de Polignac number, because 9042643 - 2¹ = 9042641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9042641) 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, 505 + ... + 4282.

It is an arithmetic number, because the mean of its divisors is an integer number (2262330).

Almost surely, 2^9042643 is an apocalyptic number.

9042643 is a deficient number, since it is larger than the sum of its proper divisors (6677).

9042643 is a wasteful number, since it uses less digits than its factorization.

9042643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6676.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 9042643 is about 3007.0987679157. The cubic root of 9042643 is about 208.3363870841.

The spelling of 9042643 in words is "nine million, forty-two thousand, six hundred forty-three".