13989075 has 24 divisors (see below), whose sum is σ = 23236608. Its totient is φ = 7426080.

The previous prime is 13989067. The next prime is 13989119. The reversal of 13989075 is 57098931.

It is a happy number.

It is not a de Polignac number, because 13989075 - 2³ = 13989067 is a prime.

It is a super-3 number, since 3×13989075³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28482 + ... + 28968.

It is an arithmetic number, because the mean of its divisors is an integer number (968192).

Almost surely, 2^13989075 is an apocalyptic number.

13989075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13989075 is a deficient number, since it is larger than the sum of its proper divisors (9247533).

13989075 is a wasteful number, since it uses less digits than its factorization.

13989075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 878 counting only the distinct ones).

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

The square root of 13989075 is about 3740.1971873151. The cubic root of 13989075 is about 240.9515177119.

The spelling of 13989075 in words is "thirteen million, nine hundred eighty-nine thousand, seventy-five".