13489806 has 48 divisors (see below), whose sum is σ = 31428432. Its totient is φ = 3843840.

The previous prime is 13489783. The next prime is 13489837. The reversal of 13489806 is 60898431.

It is a congruent number.

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, 11796 + ... + 12888.

It is an arithmetic number, because the mean of its divisors is an integer number (654759).

Almost surely, 2^13489806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13489806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15714216).

13489806 is an abundant number, since it is smaller than the sum of its proper divisors (17938626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13489806 is a wasteful number, since it uses less digits than its factorization.

13489806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 13489806 is about 3672.8471245071. The cubic root of 13489806 is about 238.0502094949.

The spelling of 13489806 in words is "thirteen million, four hundred eighty-nine thousand, eight hundred six".