233421829 has 2 divisors, whose sum is σ = 233421830. Its totient is φ = 233421828.

The previous prime is 233421827. The next prime is 233421893. The reversal of 233421829 is 928124332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232562500 + 859329 = 15250^2 + 927^2 .

It is a cyclic number.

It is not a de Polignac number, because 233421829 - 2¹ = 233421827 is a prime.

Together with 233421827, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 233421794 and 233421803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233421827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116710914 + 116710915.

It is an arithmetic number, because the mean of its divisors is an integer number (116710915).

Almost surely, 2^233421829 is an apocalyptic number.

It is an amenable number.

233421829 is a deficient number, since it is larger than the sum of its proper divisors (1).

233421829 is an equidigital number, since it uses as much as digits as its factorization.

233421829 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 233421829 is about 15278.1487425669. The cubic root of 233421829 is about 615.7160707652.

The spelling of 233421829 in words is "two hundred thirty-three million, four hundred twenty-one thousand, eight hundred twenty-nine".