232539397 has 4 divisors (see below), whose sum is σ = 232607916. Its totient is φ = 232470880.

The previous prime is 232539389. The next prime is 232539443. The reversal of 232539397 is 793935232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 206468161 + 26071236 = 14369^2 + 5106^2 .

It is a cyclic number.

It is not a de Polignac number, because 232539397 - 2³ = 232539389 is a prime.

It is a super-3 number, since 3×232539397³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232539337) 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, 28888 + ... + 36049.

It is an arithmetic number, because the mean of its divisors is an integer number (58151979).

Almost surely, 2^232539397 is an apocalyptic number.

It is an amenable number.

232539397 is a deficient number, since it is larger than the sum of its proper divisors (68519).

232539397 is an equidigital number, since it uses as much as digits as its factorization.

232539397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68518.

The product of its digits is 306180, while the sum is 43.

The square root of 232539397 is about 15249.2425057771. The cubic root of 232539397 is about 614.9392030146.

The spelling of 232539397 in words is "two hundred thirty-two million, five hundred thirty-nine thousand, three hundred ninety-seven".