16217061 has 32 divisors (see below), whose sum is σ = 26419200. Its totient is φ = 8648640.

The previous prime is 16217029. The next prime is 16217081. The reversal of 16217061 is 16071261.

16217061 = T₂₇₃ + T₂₇₄ + ... + T₄₈₉.

It is not a de Polignac number, because 16217061 - 2⁵ = 16217029 is a prime.

It is a super-4 number, since 4×16217061⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16217081) 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 31 ways as a sum of consecutive naturals, for example, 18450 + ... + 19308.

It is an arithmetic number, because the mean of its divisors is an integer number (825600).

Almost surely, 2^16217061 is an apocalyptic number.

It is an amenable number.

16217061 is a deficient number, since it is larger than the sum of its proper divisors (10202139).

16217061 is a wasteful number, since it uses less digits than its factorization.

16217061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 16217061 is about 4027.0412215422. The cubic root of 16217061 is about 253.1185943814.

The spelling of 16217061 in words is "sixteen million, two hundred seventeen thousand, sixty-one".