13898667 has 16 divisors (see below), whose sum is σ = 19204128. Its totient is φ = 8935680.

The previous prime is 13898663. The next prime is 13898701. The reversal of 13898667 is 76689831.

13898667 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13898667 - 2² = 13898663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13898663) 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, 8983 + ... + 10415.

It is an arithmetic number, because the mean of its divisors is an integer number (1200258).

Almost surely, 2^13898667 is an apocalyptic number.

13898667 is a deficient number, since it is larger than the sum of its proper divisors (5305461).

13898667 is a wasteful number, since it uses less digits than its factorization.

13898667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550.

The product of its digits is 435456, while the sum is 48.

The square root of 13898667 is about 3728.0916029518. The cubic root of 13898667 is about 240.4313250580.

The spelling of 13898667 in words is "thirteen million, eight hundred ninety-eight thousand, six hundred sixty-seven".