16872297 has 16 divisors (see below), whose sum is σ = 24792768. Its totient is φ = 10140480.

The previous prime is 16872283. The next prime is 16872301. The reversal of 16872297 is 79227861.

It is not a de Polignac number, because 16872297 - 2⁴ = 16872281 is a prime.

It is a super-3 number, since 3×16872297³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16872397) 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 15 ways as a sum of consecutive naturals, for example, 3354 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (1549548).

Almost surely, 2^16872297 is an apocalyptic number.

16872297 is the 3354-th pentagonal number.

It is an amenable number.

16872297 is a deficient number, since it is larger than the sum of its proper divisors (7920471).

16872297 is a wasteful number, since it uses less digits than its factorization.

16872297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10120.

The product of its digits is 84672, while the sum is 42.

The square root of 16872297 is about 4107.5901694302. The cubic root of 16872297 is about 256.4826962629.

The spelling of 16872297 in words is "sixteen million, eight hundred seventy-two thousand, two hundred ninety-seven".