13475947 has 4 divisors (see below), whose sum is σ = 13490640. Its totient is φ = 13461256.

The previous prime is 13475933. The next prime is 13475971. The reversal of 13475947 is 74957431.

13475947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74957431 = 29 ⋅2584739.

It is a cyclic number.

It is not a de Polignac number, because 13475947 - 2¹¹ = 13473899 is a prime.

It is a super-2 number, since 2×13475947² = 363202295093618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13475927) 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, 5872 + ... + 7837.

It is an arithmetic number, because the mean of its divisors is an integer number (3372660).

Almost surely, 2^13475947 is an apocalyptic number.

13475947 is a deficient number, since it is larger than the sum of its proper divisors (14693).

13475947 is an equidigital number, since it uses as much as digits as its factorization.

13475947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692.

The product of its digits is 105840, while the sum is 40.

The square root of 13475947 is about 3670.9599561967. The cubic root of 13475947 is about 237.9686598094.

The spelling of 13475947 in words is "thirteen million, four hundred seventy-five thousand, nine hundred forty-seven".