16427717 has 8 divisors (see below), whose sum is σ = 17153400. Its totient is φ = 15712704.

The previous prime is 16427713. The next prime is 16427731. The reversal of 16427717 is 71772461.

It can be written as a sum of positive squares in 4 ways, for example, as 3568321 + 12859396 = 1889^2 + 3586^2 .

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 16427717 - 2² = 16427713 is a prime.

It is a super-3 number, since 3×16427717³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16427711) 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, 563 + ... + 5759.

It is an arithmetic number, because the mean of its divisors is an integer number (2144175).

Almost surely, 2^16427717 is an apocalyptic number.

It is an amenable number.

16427717 is a deficient number, since it is larger than the sum of its proper divisors (725683).

16427717 is a wasteful number, since it uses less digits than its factorization.

16427717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its digits is 16464, while the sum is 35.

The square root of 16427717 is about 4053.1120142429. The cubic root of 16427717 is about 254.2098674694.

The spelling of 16427717 in words is "sixteen million, four hundred twenty-seven thousand, seven hundred seventeen".