239092397 has 6 divisors (see below), whose sum is σ = 240560718. Its totient is φ = 237632984.

The previous prime is 239092391. The next prime is 239092421. The reversal of 239092397 is 793290932.

It can be written as a sum of positive squares in only one way, i.e., 187525636 + 51566761 = 13694^2 + 7181^2 .

It is not a de Polignac number, because 239092397 - 2¹⁶ = 239026861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239092391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23603 + ... + 32175.

It is an arithmetic number, because the mean of its divisors is an integer number (40093453).

Almost surely, 2^239092397 is an apocalyptic number.

It is an amenable number.

239092397 is a deficient number, since it is larger than the sum of its proper divisors (1468321).

239092397 is an frugal number, since it uses more digits than its factorization.

239092397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8907 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 239092397 is about 15462.6128775185. The cubic root of 239092397 is about 620.6621411968.

The spelling of 239092397 in words is "two hundred thirty-nine million, ninety-two thousand, three hundred ninety-seven".