16487172 has 48 divisors (see below), whose sum is σ = 46036480. Its totient is φ = 5072544.

The previous prime is 16487171. The next prime is 16487173. The reversal of 16487172 is 27178461.

16487172 = T₁₄₃ + T₁₄₄ + ... + T₄₆₆.

16487172 is a `hidden beast` number, since 1 + 6 + 487 + 172 = 666.

16487172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16487171) and next prime (16487173).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16487171) 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, 4468 + ... + 7275.

Almost surely, 2^16487172 is an apocalyptic number.

16487172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16487172 is an abundant number, since it is smaller than the sum of its proper divisors (29549308).

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

16487172 is a wasteful number, since it uses less digits than its factorization.

16487172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11769 (or 11761 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 16487172 is about 4060.4398776487. The cubic root of 16487172 is about 254.5161760233.

The spelling of 16487172 in words is "sixteen million, four hundred eighty-seven thousand, one hundred seventy-two".