15798223 has 16 divisors (see below), whose sum is σ = 18700864. Its totient is φ = 13063680.

The previous prime is 15798221. The next prime is 15798227. The reversal of 15798223 is 32289751.

It is not a de Polignac number, because 15798223 - 2¹ = 15798221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15798221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46711 + ... + 47047.

It is an arithmetic number, because the mean of its divisors is an integer number (1168804).

Almost surely, 2^15798223 is an apocalyptic number.

15798223 is a deficient number, since it is larger than the sum of its proper divisors (2902641).

15798223 is a wasteful number, since it uses less digits than its factorization.

15798223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its digits is 30240, while the sum is 37.

The square root of 15798223 is about 3974.6978501516. The cubic root of 15798223 is about 250.9204628334.

The spelling of 15798223 in words is "fifteen million, seven hundred ninety-eight thousand, two hundred twenty-three".