234447397 has 4 divisors (see below), whose sum is σ = 242531820. Its totient is φ = 226362976.

The previous prime is 234447371. The next prime is 234447401. The reversal of 234447397 is 793744432.

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 68707521 + 165739876 = 8289^2 + 12874^2 .

It is a cyclic number.

It is not a de Polignac number, because 234447397 - 2¹¹ = 234445349 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 (234447197) 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, 4042168 + ... + 4042225.

It is an arithmetic number, because the mean of its divisors is an integer number (60632955).

Almost surely, 2^234447397 is an apocalyptic number.

It is an amenable number.

234447397 is a deficient number, since it is larger than the sum of its proper divisors (8084423).

234447397 is an equidigital number, since it uses as much as digits as its factorization.

234447397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8084422.

The product of its digits is 508032, while the sum is 43.

The square root of 234447397 is about 15311.6751859488. The cubic root of 234447397 is about 616.6164951959.

The spelling of 234447397 in words is "two hundred thirty-four million, four hundred forty-seven thousand, three hundred ninety-seven".