15689713 has 8 divisors (see below), whose sum is σ = 16927400. Its totient is φ = 14456448.

The previous prime is 15689701. The next prime is 15689717. The reversal of 15689713 is 31798651.

It can be written as a sum of positive squares in 4 ways, for example, as 63504 + 15626209 = 252^2 + 3953^2 .

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 15689713 - 2¹³ = 15681521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15689717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13333 + ... + 14461.

It is an arithmetic number, because the mean of its divisors is an integer number (2115925).

Almost surely, 2^15689713 is an apocalyptic number.

15689713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15689713 is a deficient number, since it is larger than the sum of its proper divisors (1237687).

15689713 is a wasteful number, since it uses less digits than its factorization.

15689713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211.

The product of its digits is 45360, while the sum is 40.

The square root of 15689713 is about 3961.0242362298. The cubic root of 15689713 is about 250.3446606179.

The spelling of 15689713 in words is "fifteen million, six hundred eighty-nine thousand, seven hundred thirteen".