13285737 has 6 divisors (see below), whose sum is σ = 19190522. Its totient is φ = 8857152.

The previous prime is 13285717. The next prime is 13285757. The reversal of 13285737 is 73758231.

It is an interprime number because it is at equal distance from previous prime (13285717) and next prime (13285757).

It can be written as a sum of positive squares in only one way, i.e., 11758041 + 1527696 = 3429^2 + 1236^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13285737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13285717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 738088 + ... + 738105.

Almost surely, 2^13285737 is an apocalyptic number.

It is an amenable number.

13285737 is a deficient number, since it is larger than the sum of its proper divisors (5904785).

13285737 is a wasteful number, since it uses less digits than its factorization.

13285737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476199 (or 1476196 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 13285737 is about 3644.9604936131. The cubic root of 13285737 is about 236.8437254236.

The spelling of 13285737 in words is "thirteen million, two hundred eighty-five thousand, seven hundred thirty-seven".