15223799 has 2 divisors, whose sum is σ = 15223800. Its totient is φ = 15223798.

The previous prime is 15223783. The next prime is 15223801. The reversal of 15223799 is 99732251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15223799 - 2⁴ = 15223783 is a prime.

Together with 15223801, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₉₈₄₁₉₇ and since 15223799 and 984197 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15223739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7611899 + 7611900.

It is an arithmetic number, because the mean of its divisors is an integer number (7611900).

Almost surely, 2^15223799 is an apocalyptic number.

15223799 is a deficient number, since it is larger than the sum of its proper divisors (1).

15223799 is an equidigital number, since it uses as much as digits as its factorization.

15223799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 15223799 is about 3901.7687014994. The cubic root of 15223799 is about 247.8416816024.

The spelling of 15223799 in words is "fifteen million, two hundred twenty-three thousand, seven hundred ninety-nine".