13981467 has 4 divisors (see below), whose sum is σ = 18641960. Its totient is φ = 9320976.

The previous prime is 13981459. The next prime is 13981469. The reversal of 13981467 is 76418931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13981467 - 2³ = 13981459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13981469) 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, 2330242 + ... + 2330247.

It is an arithmetic number, because the mean of its divisors is an integer number (4660490).

Almost surely, 2^13981467 is an apocalyptic number.

13981467 is a deficient number, since it is larger than the sum of its proper divisors (4660493).

13981467 is an equidigital number, since it uses as much as digits as its factorization.

13981467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660492.

The product of its digits is 36288, while the sum is 39.

The square root of 13981467 is about 3739.1799903187. The cubic root of 13981467 is about 240.9078290580.

The spelling of 13981467 in words is "thirteen million, nine hundred eighty-one thousand, four hundred sixty-seven".