239423713 has 2 divisors, whose sum is σ = 239423714. Its totient is φ = 239423712.

The previous prime is 239423683. The next prime is 239423729. The reversal of 239423713 is 317324932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231739729 + 7683984 = 15223^2 + 2772^2 .

It is a cyclic number.

It is not a de Polignac number, because 239423713 - 2¹³ = 239415521 is a prime.

It is not a weakly prime, because it can be changed into another prime (239423783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119711856 + 119711857.

It is an arithmetic number, because the mean of its divisors is an integer number (119711857).

Almost surely, 2^239423713 is an apocalyptic number.

It is an amenable number.

239423713 is a deficient number, since it is larger than the sum of its proper divisors (1).

239423713 is an equidigital number, since it uses as much as digits as its factorization.

239423713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 34.

The square root of 239423713 is about 15473.3226231472. The cubic root of 239423713 is about 620.9486976202.

The spelling of 239423713 in words is "two hundred thirty-nine million, four hundred twenty-three thousand, seven hundred thirteen".