16870271 has 16 divisors (see below), whose sum is σ = 19751040. Its totient is φ = 14245920.

The previous prime is 16870219. The next prime is 16870289. The reversal of 16870271 is 17207861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16870271 is a prime.

It is a super-2 number, since 2×16870271² = 569212087226882, which contains 22 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 (16870211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10316 + ... + 11838.

It is an arithmetic number, because the mean of its divisors is an integer number (1234440).

Almost surely, 2^16870271 is an apocalyptic number.

16870271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16870271 is a deficient number, since it is larger than the sum of its proper divisors (2880769).

16870271 is a wasteful number, since it uses less digits than its factorization.

16870271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 16870271 is about 4107.3435454074. The cubic root of 16870271 is about 256.4724298334.

The spelling of 16870271 in words is "sixteen million, eight hundred seventy thousand, two hundred seventy-one".