4023847 has 4 divisors (see below), whose sum is σ = 4035600. Its totient is φ = 4012096.

The previous prime is 4023841. The next prime is 4023853. The reversal of 4023847 is 7483204.

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

It is an interprime number because it is at equal distance from previous prime (4023841) and next prime (4023853).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4023847 is a prime.

It is a Duffinian number.

4023847 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5347 + ... + 6052.

It is an arithmetic number, because the mean of its divisors is an integer number (1008900).

Almost surely, 2^4023847 is an apocalyptic number.

4023847 is a deficient number, since it is larger than the sum of its proper divisors (11753).

4023847 is a wasteful number, since it uses less digits than its factorization.

4023847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 4023847 is about 2005.9528907729. The cubic root of 4023847 is about 159.0549366485.

The spelling of 4023847 in words is "four million, twenty-three thousand, eight hundred forty-seven".