13797737 has 4 divisors (see below), whose sum is σ = 13805700. Its totient is φ = 13789776.

The previous prime is 13797731. The next prime is 13797739. The reversal of 13797737 is 73779731.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8317456 + 5480281 = 2884^2 + 2341^2 .

It is a cyclic number.

It is not a de Polignac number, because 13797737 - 2⁶ = 13797673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13797731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (3451425).

Almost surely, 2^13797737 is an apocalyptic number.

It is an amenable number.

13797737 is a deficient number, since it is larger than the sum of its proper divisors (7963).

13797737 is an equidigital number, since it uses as much as digits as its factorization.

13797737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962.

The product of its digits is 194481, while the sum is 44.

The square root of 13797737 is about 3714.5305221522. The cubic root of 13797737 is about 239.8479186970.

The spelling of 13797737 in words is "thirteen million, seven hundred ninety-seven thousand, seven hundred thirty-seven".