13007447 has 4 divisors (see below), whose sum is σ = 13201656. Its totient is φ = 12813240.

The previous prime is 13007441. The next prime is 13007453. The reversal of 13007447 is 74470031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74470031 = 67 ⋅1111493.

It is an interprime number because it is at equal distance from previous prime (13007441) and next prime (13007453).

It is a cyclic number.

It is not a de Polignac number, because 13007447 - 2¹⁰ = 13006423 is a prime.

It is a super-3 number, since 3×13007447³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13007441) 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, 97004 + ... + 97137.

It is an arithmetic number, because the mean of its divisors is an integer number (3300414).

Almost surely, 2^13007447 is an apocalyptic number.

13007447 is a deficient number, since it is larger than the sum of its proper divisors (194209).

13007447 is an equidigital number, since it uses as much as digits as its factorization.

13007447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194208.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 13007447 is about 3606.5838407002. The cubic root of 13007447 is about 235.1783586359.

Adding to 13007447 its reverse (74470031), we get a palindrome (87477478).

The spelling of 13007447 in words is "thirteen million, seven thousand, four hundred forty-seven".