15448973 has 4 divisors (see below), whose sum is σ = 15710880. Its totient is φ = 15187068.

The previous prime is 15448969. The next prime is 15448987. The reversal of 15448973 is 37984451.

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.

It is a cyclic number.

It is not a de Polignac number, because 15448973 - 2² = 15448969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15448973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15448963) 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, 130865 + ... + 130982.

It is an arithmetic number, because the mean of its divisors is an integer number (3927720).

Almost surely, 2^15448973 is an apocalyptic number.

It is an amenable number.

15448973 is a deficient number, since it is larger than the sum of its proper divisors (261907).

15448973 is an equidigital number, since it uses as much as digits as its factorization.

15448973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261906.

The product of its digits is 120960, while the sum is 41.

The square root of 15448973 is about 3930.5181592253. The cubic root of 15448973 is about 249.0576416394.

The spelling of 15448973 in words is "fifteen million, four hundred forty-eight thousand, nine hundred seventy-three".