234921823 has 2 divisors, whose sum is σ = 234921824. Its totient is φ = 234921822.

The previous prime is 234921821. The next prime is 234921851. The reversal of 234921823 is 328129432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234921823 - 2¹ = 234921821 is a prime.

Together with 234921821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234921821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117460911 + 117460912.

It is an arithmetic number, because the mean of its divisors is an integer number (117460912).

Almost surely, 2^234921823 is an apocalyptic number.

234921823 is a deficient number, since it is larger than the sum of its proper divisors (1).

234921823 is an equidigital number, since it uses as much as digits as its factorization.

234921823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 234921823 is about 15327.1596520686. The cubic root of 234921823 is about 617.0321417988.

The spelling of 234921823 in words is "two hundred thirty-four million, nine hundred twenty-one thousand, eight hundred twenty-three".