13899507 has 8 divisors (see below), whose sum is σ = 19508160. Its totient is φ = 8778600.

The previous prime is 13899503. The next prime is 13899517. The reversal of 13899507 is 70599831.

It is a happy number.

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

It is not a de Polignac number, because 13899507 - 2² = 13899503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13899503) 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, 121869 + ... + 121982.

It is an arithmetic number, because the mean of its divisors is an integer number (2438520).

Almost surely, 2^13899507 is an apocalyptic number.

13899507 is a deficient number, since it is larger than the sum of its proper divisors (5608653).

13899507 is a wasteful number, since it uses less digits than its factorization.

13899507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243873.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 13899507 is about 3728.2042594257. The cubic root of 13899507 is about 240.4361686458.

The spelling of 13899507 in words is "thirteen million, eight hundred ninety-nine thousand, five hundred seven".