13730917 has 8 divisors (see below), whose sum is σ = 14778072. Its totient is φ = 12710400.

The previous prime is 13730897. The next prime is 13730929. The reversal of 13730917 is 71903731.

It can be written as a sum of positive squares in 4 ways, for example, as 4330561 + 9400356 = 2081^2 + 3066^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13730917 - 2¹⁵ = 13698149 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 (13730987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5584 + ... + 7657.

It is an arithmetic number, because the mean of its divisors is an integer number (1847259).

Almost surely, 2^13730917 is an apocalyptic number.

13730917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13730917 is a deficient number, since it is larger than the sum of its proper divisors (1047155).

13730917 is a wasteful number, since it uses less digits than its factorization.

13730917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13319.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 13730917 is about 3705.5251989428. The cubic root of 13730917 is about 239.4601116445.

The spelling of 13730917 in words is "thirteen million, seven hundred thirty thousand, nine hundred seventeen".