13709497 has 8 divisors (see below), whose sum is σ = 14565096. Its totient is φ = 12859392.

The previous prime is 13709491. The next prime is 13709513. The reversal of 13709497 is 79490731.

It can be written as a sum of positive squares in 4 ways, for example, as 137641 + 13571856 = 371^2 + 3684^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13709497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13709491) 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 7 ways as a sum of consecutive naturals, for example, 4533 + ... + 6925.

It is an arithmetic number, because the mean of its divisors is an integer number (1820637).

Almost surely, 2^13709497 is an apocalyptic number.

13709497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13709497 is a deficient number, since it is larger than the sum of its proper divisors (855599).

13709497 is a wasteful number, since it uses less digits than its factorization.

13709497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 13709497 is about 3702.6337923160. The cubic root of 13709497 is about 239.3355289217.

The spelling of 13709497 in words is "thirteen million, seven hundred nine thousand, four hundred ninety-seven".