13477989 has 24 divisors (see below), whose sum is σ = 21043488. Its totient is φ = 7650720.

The previous prime is 13477987. The next prime is 13477993. The reversal of 13477989 is 98977431.

13477989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13477989 - 2¹ = 13477987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13477987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40554 + ... + 40884.

It is an arithmetic number, because the mean of its divisors is an integer number (876812).

Almost surely, 2^13477989 is an apocalyptic number.

It is an amenable number.

13477989 is a deficient number, since it is larger than the sum of its proper divisors (7565499).

13477989 is a wasteful number, since it uses less digits than its factorization.

13477989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 618 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 13477989 is about 3671.2380745465. The cubic root of 13477989 is about 237.9806789390.

The spelling of 13477989 in words is "thirteen million, four hundred seventy-seven thousand, nine hundred eighty-nine".