234716621 has 2 divisors, whose sum is σ = 234716622. Its totient is φ = 234716620.

The previous prime is 234716597. The next prime is 234716639. The reversal of 234716621 is 126617432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234518596 + 198025 = 15314^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 234716621 - 2¹⁰ = 234715597 is a prime.

It is equal to p_12887222 and since 234716621 and 12887222 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234716921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117358310 + 117358311.

It is an arithmetic number, because the mean of its divisors is an integer number (117358311).

Almost surely, 2^234716621 is an apocalyptic number.

It is an amenable number.

234716621 is a deficient number, since it is larger than the sum of its proper divisors (1).

234716621 is an equidigital number, since it uses as much as digits as its factorization.

234716621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 234716621 is about 15320.4641248234. The cubic root of 234716621 is about 616.8524322088.

The spelling of 234716621 in words is "two hundred thirty-four million, seven hundred sixteen thousand, six hundred twenty-one".