15668341 has 4 divisors (see below), whose sum is σ = 16873612. Its totient is φ = 14463072.

The previous prime is 15668311. The next prime is 15668347. The reversal of 15668341 is 14386651.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 13845841 = 1350^2 + 3721^2 .

It is not a de Polignac number, because 15668341 - 2⁵ = 15668309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15668297 and 15668306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15668347) 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, 602616 + ... + 602641.

It is an arithmetic number, because the mean of its divisors is an integer number (4218403).

Almost surely, 2^15668341 is an apocalyptic number.

It is an amenable number.

15668341 is a deficient number, since it is larger than the sum of its proper divisors (1205271).

15668341 is a wasteful number, since it uses less digits than its factorization.

15668341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205270.

The product of its digits is 17280, while the sum is 34.

The square root of 15668341 is about 3958.3255298169. The cubic root of 15668341 is about 250.2309386038.

The spelling of 15668341 in words is "fifteen million, six hundred sixty-eight thousand, three hundred forty-one".