16701617 has 4 divisors (see below), whose sum is σ = 16975476. Its totient is φ = 16427760.

The previous prime is 16701577. The next prime is 16701623. The reversal of 16701617 is 71610761.

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 3444736 + 13256881 = 1856^2 + 3641^2 .

It is a cyclic number.

It is not a de Polignac number, because 16701617 - 2¹⁸ = 16439473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16701617.

It is not an unprimeable number, because it can be changed into a prime (16701647) 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, 136838 + ... + 136959.

It is an arithmetic number, because the mean of its divisors is an integer number (4243869).

Almost surely, 2^16701617 is an apocalyptic number.

It is an amenable number.

16701617 is a deficient number, since it is larger than the sum of its proper divisors (273859).

16701617 is an equidigital number, since it uses as much as digits as its factorization.

16701617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273858.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 16701617 is about 4086.7611870527. The cubic root of 16701617 is about 255.6149046015.

The spelling of 16701617 in words is "sixteen million, seven hundred one thousand, six hundred seventeen".