13428837 has 12 divisors (see below), whose sum is σ = 19487104. Its totient is φ = 8911080.

The previous prime is 13428829. The next prime is 13428847. The reversal of 13428837 is 73882431.

13428837 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13428837 - 2³ = 13428829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1339 + ... + 5352.

Almost surely, 2^13428837 is an apocalyptic number.

It is an amenable number.

13428837 is a deficient number, since it is larger than the sum of its proper divisors (6058267).

13428837 is a wasteful number, since it uses less digits than its factorization.

13428837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920 (or 6917 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 13428837 is about 3664.5377607551. The cubic root of 13428837 is about 237.6910344801.

The spelling of 13428837 in words is "thirteen million, four hundred twenty-eight thousand, eight hundred thirty-seven".