15220793 has 4 divisors (see below), whose sum is σ = 17395200. Its totient is φ = 13046388.

The previous prime is 15220747. The next prime is 15220819. The reversal of 15220793 is 39702251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39702251 = 223 ⋅178037.

It is a cyclic number.

It is not a de Polignac number, because 15220793 - 2¹⁰ = 15219769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15220703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087193 + ... + 1087206.

It is an arithmetic number, because the mean of its divisors is an integer number (4348800).

Almost surely, 2^15220793 is an apocalyptic number.

It is an amenable number.

15220793 is a deficient number, since it is larger than the sum of its proper divisors (2174407).

15220793 is an equidigital number, since it uses as much as digits as its factorization.

15220793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174406.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 15220793 is about 3901.3834725646. The cubic root of 15220793 is about 247.8253680849.

The spelling of 15220793 in words is "fifteen million, two hundred twenty thousand, seven hundred ninety-three".