13478667 has 8 divisors (see below), whose sum is σ = 18753024. Its totient is φ = 8595048.

The previous prime is 13478653. The next prime is 13478669. The reversal of 13478667 is 76687431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13478667 - 2⁷ = 13478539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13478669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97603 + ... + 97740.

It is an arithmetic number, because the mean of its divisors is an integer number (2344128).

Almost surely, 2^13478667 is an apocalyptic number.

13478667 is a deficient number, since it is larger than the sum of its proper divisors (5274357).

13478667 is a wasteful number, since it uses less digits than its factorization.

13478667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195369.

The product of its digits is 169344, while the sum is 42.

The square root of 13478667 is about 3671.3304128068. The cubic root of 13478667 is about 237.9846693512.

The spelling of 13478667 in words is "thirteen million, four hundred seventy-eight thousand, six hundred sixty-seven".