16870872 has 32 divisors (see below), whose sum is σ = 42306480. Its totient is φ = 5606400.

The previous prime is 16870813. The next prime is 16870877. The reversal of 16870872 is 27807861.

It is a self number, because there is not a number n which added to its sum of digits gives 16870872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16870877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8748 + ... + 10500.

Almost surely, 2^16870872 is an apocalyptic number.

16870872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16870872 is an abundant number, since it is smaller than the sum of its proper divisors (25435608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16870872 is a wasteful number, since it uses less digits than its factorization.

16870872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 16870872 is about 4107.4167063983. The cubic root of 16870872 is about 256.4754753901.

The spelling of 16870872 in words is "sixteen million, eight hundred seventy thousand, eight hundred seventy-two".