233890849 has 2 divisors, whose sum is σ = 233890850. Its totient is φ = 233890848.

The previous prime is 233890837. The next prime is 233890871. The reversal of 233890849 is 948098332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172738449 + 61152400 = 13143^2 + 7820^2 .

It is a cyclic number.

It is not a de Polignac number, because 233890849 - 2¹¹ = 233888801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 233890799 and 233890808.

It is not a weakly prime, because it can be changed into another prime (233890049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116945424 + 116945425.

It is an arithmetic number, because the mean of its divisors is an integer number (116945425).

Almost surely, 2^233890849 is an apocalyptic number.

It is an amenable number.

233890849 is a deficient number, since it is larger than the sum of its proper divisors (1).

233890849 is an equidigital number, since it uses as much as digits as its factorization.

233890849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 233890849 is about 15293.4904125906. The cubic root of 233890849 is about 616.1281858171.

The spelling of 233890849 in words is "two hundred thirty-three million, eight hundred ninety thousand, eight hundred forty-nine".