23839147 has 2 divisors, whose sum is σ = 23839148. Its totient is φ = 23839146.

The previous prime is 23839141. The next prime is 23839171. The reversal of 23839147 is 74193832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23839147 - 2¹⁵ = 23806379 is a prime.

It is not a weakly prime, because it can be changed into another prime (23839141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11919573 + 11919574.

It is an arithmetic number, because the mean of its divisors is an integer number (11919574).

Almost surely, 2^23839147 is an apocalyptic number.

23839147 is a deficient number, since it is larger than the sum of its proper divisors (1).

23839147 is an equidigital number, since it uses as much as digits as its factorization.

23839147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 23839147 is about 4882.5348949086. The cubic root of 23839147 is about 287.8040518650.

The spelling of 23839147 in words is "twenty-three million, eight hundred thirty-nine thousand, one hundred forty-seven".