23199829 has 2 divisors, whose sum is σ = 23199830. Its totient is φ = 23199828.

The previous prime is 23199773. The next prime is 23199853. The reversal of 23199829 is 92899132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23059204 + 140625 = 4802^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 23199829 - 2²¹ = 21102677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23199929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11599914 + 11599915.

It is an arithmetic number, because the mean of its divisors is an integer number (11599915).

Almost surely, 2^23199829 is an apocalyptic number.

It is an amenable number.

23199829 is a deficient number, since it is larger than the sum of its proper divisors (1).

23199829 is an equidigital number, since it uses as much as digits as its factorization.

23199829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 43.

The square root of 23199829 is about 4816.6200805129. The cubic root of 23199829 is about 285.2079286987.

The spelling of 23199829 in words is "twenty-three million, one hundred ninety-nine thousand, eight hundred twenty-nine".