16542897 has 8 divisors (see below), whose sum is σ = 25208256. Its totient is φ = 9453072.

The previous prime is 16542881. The next prime is 16542931. The reversal of 16542897 is 79824561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16542897 - 2⁴ = 16542881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16542817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393858 + ... + 393899.

It is an arithmetic number, because the mean of its divisors is an integer number (3151032).

Almost surely, 2^16542897 is an apocalyptic number.

It is an amenable number.

16542897 is a deficient number, since it is larger than the sum of its proper divisors (8665359).

16542897 is an equidigital number, since it uses as much as digits as its factorization.

16542897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787767.

The product of its digits is 120960, while the sum is 42.

The square root of 16542897 is about 4067.2960305343. The cubic root of 16542897 is about 254.8026000160.

The spelling of 16542897 in words is "sixteen million, five hundred forty-two thousand, eight hundred ninety-seven".