13477889 has 16 divisors (see below), whose sum is σ = 14905296. Its totient is φ = 12134400.

The previous prime is 13477843. The next prime is 13477907. The reversal of 13477889 is 98877431.

It can be written as a sum of positive squares in 8 ways, for example, as 5721664 + 7756225 = 2392^2 + 2785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13477889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (13477819) 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, 42359 + ... + 42675.

It is an arithmetic number, because the mean of its divisors is an integer number (931581).

Almost surely, 2^13477889 is an apocalyptic number.

It is an amenable number.

13477889 is a deficient number, since it is larger than the sum of its proper divisors (1427407).

13477889 is a wasteful number, since it uses less digits than its factorization.

13477889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its digits is 338688, while the sum is 47.

The square root of 13477889 is about 3671.2244551375. The cubic root of 13477889 is about 237.9800903713.

The spelling of 13477889 in words is "thirteen million, four hundred seventy-seven thousand, eight hundred eighty-nine".