239434197 has 4 divisors (see below), whose sum is σ = 319245600. Its totient is φ = 159622796.

The previous prime is 239434177. The next prime is 239434241. The reversal of 239434197 is 791434932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239434197 - 2²⁴ = 222656981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239434127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39905697 + ... + 39905702.

It is an arithmetic number, because the mean of its divisors is an integer number (79811400).

Almost surely, 2^239434197 is an apocalyptic number.

It is an amenable number.

239434197 is a deficient number, since it is larger than the sum of its proper divisors (79811403).

239434197 is an equidigital number, since it uses as much as digits as its factorization.

239434197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79811402.

The product of its digits is 163296, while the sum is 42.

The square root of 239434197 is about 15473.6613960627. The cubic root of 239434197 is about 620.9577609540.

The spelling of 239434197 in words is "two hundred thirty-nine million, four hundred thirty-four thousand, one hundred ninety-seven".