13899573 has 16 divisors (see below), whose sum is σ = 20650560. Its totient is φ = 9240048.

The previous prime is 13899569. The next prime is 13899581. The reversal of 13899573 is 37599831.

It is a happy number.

13899573 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13899573 - 2² = 13899569 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13899503) 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, 15411 + ... + 16287.

It is an arithmetic number, because the mean of its divisors is an integer number (1290660).

Almost surely, 2^13899573 is an apocalyptic number.

It is an amenable number.

13899573 is a deficient number, since it is larger than the sum of its proper divisors (6750987).

13899573 is an equidigital number, since it uses as much as digits as its factorization.

13899573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1467 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 13899573 is about 3728.2131108616. The cubic root of 13899573 is about 240.4365492052.

The spelling of 13899573 in words is "thirteen million, eight hundred ninety-nine thousand, five hundred seventy-three".