16211017 has 6 divisors (see below), whose sum is σ = 16493978. Its totient is φ = 15932832.

The previous prime is 16211003. The next prime is 16211023. The reversal of 16211017 is 71011261.

It can be written as a sum of positive squares in only one way, i.e., 10916416 + 5294601 = 3304^2 + 2301^2 .

It is not a de Polignac number, because 16211017 - 2⁷ = 16210889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16210985 and 16211003.

It is not an unprimeable number, because it can be changed into a prime (16211077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1153 + ... + 5809.

Almost surely, 2^16211017 is an apocalyptic number.

It is an amenable number.

16211017 is a deficient number, since it is larger than the sum of its proper divisors (282961).

16211017 is an frugal number, since it uses more digits than its factorization.

16211017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775 (or 4716 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 16211017 is about 4026.2907247242. The cubic root of 16211017 is about 253.0871452206.

Adding to 16211017 its reverse (71011261), we get a palindrome (87222278).

The spelling of 16211017 in words is "sixteen million, two hundred eleven thousand, seventeen".