13670427 has 16 divisors (see below), whose sum is σ = 18911232. Its totient is φ = 8776800.

The previous prime is 13670417. The next prime is 13670497. The reversal of 13670427 is 72407631.

It is not a de Polignac number, because 13670427 - 2⁸ = 13670171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13670394 and 13670403.

It is not an unprimeable number, because it can be changed into a prime (13670417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11302 + ... + 12452.

It is an arithmetic number, because the mean of its divisors is an integer number (1181952).

Almost surely, 2^13670427 is an apocalyptic number.

13670427 is a deficient number, since it is larger than the sum of its proper divisors (5240805).

13670427 is a wasteful number, since it uses less digits than its factorization.

13670427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 13670427 is about 3697.3540539148. The cubic root of 13670427 is about 239.1079558743.

The spelling of 13670427 in words is "thirteen million, six hundred seventy thousand, four hundred twenty-seven".