13797736 has 16 divisors (see below), whose sum is σ = 26763300. Its totient is φ = 6660864.

The previous prime is 13797731. The next prime is 13797739. The reversal of 13797736 is 63779731.

It can be written as a sum of positive squares in 2 ways, for example, as 13645636 + 152100 = 3694^2 + 390^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13797692 and 13797701.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29505 + ... + 29968.

Almost surely, 2^13797736 is an apocalyptic number.

13797736 is the 1986-th centered heptagonal number.

It is an amenable number.

13797736 is a deficient number, since it is larger than the sum of its proper divisors (12965564).

13797736 is a wasteful number, since it uses less digits than its factorization.

13797736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59508 (or 59504 counting only the distinct ones).

The product of its digits is 166698, while the sum is 43.

The square root of 13797736 is about 3714.5303875456. The cubic root of 13797736 is about 239.8479129026.

The spelling of 13797736 in words is "thirteen million, seven hundred ninety-seven thousand, seven hundred thirty-six".