234716921 has 2 divisors, whose sum is σ = 234716922. Its totient is φ = 234716920.

The previous prime is 234716891. The next prime is 234716947. The reversal of 234716921 is 129617432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207676921 + 27040000 = 14411^2 + 5200^2 .

It is a cyclic number.

It is not a de Polignac number, because 234716921 - 2⁶ = 234716857 is a prime.

It is not a weakly prime, because it can be changed into another prime (234716971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117358460 + 117358461.

It is an arithmetic number, because the mean of its divisors is an integer number (117358461).

Almost surely, 2^234716921 is an apocalyptic number.

It is an amenable number.

234716921 is a deficient number, since it is larger than the sum of its proper divisors (1).

234716921 is an equidigital number, since it uses as much as digits as its factorization.

234716921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 234716921 is about 15320.4739156463. The cubic root of 234716921 is about 616.8526950160.

The spelling of 234716921 in words is "two hundred thirty-four million, seven hundred sixteen thousand, nine hundred twenty-one".