16297971 has 16 divisors (see below), whose sum is σ = 23208960. Its totient is φ = 10150560.

The previous prime is 16297969. The next prime is 16297973. The reversal of 16297971 is 17979261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16297969) and next prime (16297973).

It is not a de Polignac number, because 16297971 - 2¹ = 16297969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16297973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325 + ... + 5718.

It is an arithmetic number, because the mean of its divisors is an integer number (1450560).

Almost surely, 2^16297971 is an apocalyptic number.

16297971 is a deficient number, since it is larger than the sum of its proper divisors (6910989).

16297971 is a wasteful number, since it uses less digits than its factorization.

16297971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106.

The product of its digits is 47628, while the sum is 42.

The square root of 16297971 is about 4037.0745596285. The cubic root of 16297971 is about 253.5388485059.

The spelling of 16297971 in words is "sixteen million, two hundred ninety-seven thousand, nine hundred seventy-one".