13471487 has 4 divisors (see below), whose sum is σ = 13725720. Its totient is φ = 13217256.

The previous prime is 13471483. The next prime is 13471501. The reversal of 13471487 is 78417431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78417431 = 59 ⋅1329109.

It is a cyclic number.

It is not a de Polignac number, because 13471487 - 2² = 13471483 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 (13471483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127037 + ... + 127142.

It is an arithmetic number, because the mean of its divisors is an integer number (3431430).

Almost surely, 2^13471487 is an apocalyptic number.

13471487 is a deficient number, since it is larger than the sum of its proper divisors (254233).

13471487 is an equidigital number, since it uses as much as digits as its factorization.

13471487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254232.

The product of its digits is 18816, while the sum is 35.

The square root of 13471487 is about 3670.3524353936. The cubic root of 13471487 is about 237.9424042067.

The spelling of 13471487 in words is "thirteen million, four hundred seventy-one thousand, four hundred eighty-seven".