13478573 has 4 divisors (see below), whose sum is σ = 13499868. Its totient is φ = 13457280.

The previous prime is 13478567. The next prime is 13478611. The reversal of 13478573 is 37587431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2601769 + 10876804 = 1613^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 13478573 - 2⁴ = 13478557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13478503) 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, 9668 + ... + 10973.

It is an arithmetic number, because the mean of its divisors is an integer number (3374967).

Almost surely, 2^13478573 is an apocalyptic number.

It is an amenable number.

13478573 is a deficient number, since it is larger than the sum of its proper divisors (21295).

13478573 is an equidigital number, since it uses as much as digits as its factorization.

13478573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21294.

The product of its digits is 70560, while the sum is 38.

The square root of 13478573 is about 3671.3176108858. The cubic root of 13478573 is about 237.9841161162.

The spelling of 13478573 in words is "thirteen million, four hundred seventy-eight thousand, five hundred seventy-three".