23428347 has 4 divisors (see below), whose sum is σ = 31237800. Its totient is φ = 15618896.

The previous prime is 23428337. The next prime is 23428357. The reversal of 23428347 is 74382432.

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 (23428337) and next prime (23428357).

It is a cyclic number.

It is not a de Polignac number, because 23428347 - 2¹⁴ = 23411963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23428337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3904722 + ... + 3904727.

It is an arithmetic number, because the mean of its divisors is an integer number (7809450).

Almost surely, 2^23428347 is an apocalyptic number.

23428347 is a deficient number, since it is larger than the sum of its proper divisors (7809453).

23428347 is an equidigital number, since it uses as much as digits as its factorization.

23428347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809452.

The product of its digits is 32256, while the sum is 33.

The square root of 23428347 is about 4840.2837726728. The cubic root of 23428347 is about 286.1413022074.

The spelling of 23428347 in words is "twenty-three million, four hundred twenty-eight thousand, three hundred forty-seven".