16172847 has 6 divisors (see below), whose sum is σ = 23360792. Its totient is φ = 10781892.

The previous prime is 16172837. The next prime is 16172861. The reversal of 16172847 is 74827161.

It is not a de Polignac number, because 16172847 - 2¹⁴ = 16156463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16172837) 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, 898483 + ... + 898500.

Almost surely, 2^16172847 is an apocalyptic number.

16172847 is a deficient number, since it is larger than the sum of its proper divisors (7187945).

16172847 is a wasteful number, since it uses less digits than its factorization.

16172847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796989 (or 1796986 counting only the distinct ones).

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

The square root of 16172847 is about 4021.5478363436. The cubic root of 16172847 is about 252.8883518475. Note that the first 3 decimals are identical.

The spelling of 16172847 in words is "sixteen million, one hundred seventy-two thousand, eight hundred forty-seven".