234212387 has 2 divisors, whose sum is σ = 234212388. Its totient is φ = 234212386.

The previous prime is 234212351. The next prime is 234212437. The reversal of 234212387 is 783212432.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234212387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (234212287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117106193 + 117106194.

It is an arithmetic number, because the mean of its divisors is an integer number (117106194).

Almost surely, 2^234212387 is an apocalyptic number.

234212387 is a deficient number, since it is larger than the sum of its proper divisors (1).

234212387 is an equidigital number, since it uses as much as digits as its factorization.

234212387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 234212387 is about 15303.9990525353. Note that the first 3 decimals coincide. The cubic root of 234212387 is about 616.4103942524.

The spelling of 234212387 in words is "two hundred thirty-four million, two hundred twelve thousand, three hundred eighty-seven".