234221665 has 8 divisors (see below), whose sum is σ = 297599400. Its totient is φ = 176355072.

The previous prime is 234221657. The next prime is 234221677. The reversal of 234221665 is 566122432.

It can be written as a sum of positive squares in 4 ways, for example, as 24522304 + 209699361 = 4952^2 + 14481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234221665 - 2³ = 234221657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377690 + ... + 1377859.

It is an arithmetic number, because the mean of its divisors is an integer number (37199925).

Almost surely, 2^234221665 is an apocalyptic number.

It is an amenable number.

234221665 is a deficient number, since it is larger than the sum of its proper divisors (63377735).

234221665 is a wasteful number, since it uses less digits than its factorization.

234221665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755571.

The product of its digits is 17280, while the sum is 31.

The square root of 234221665 is about 15304.3021729186. The cubic root of 234221665 is about 616.4185335602.

The spelling of 234221665 in words is "two hundred thirty-four million, two hundred twenty-one thousand, six hundred sixty-five".