16297423 has 4 divisors (see below), whose sum is σ = 16337680. Its totient is φ = 16257168.

The previous prime is 16297399. The next prime is 16297433. The reversal of 16297423 is 32479261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16297423 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 (16297433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19515 + ... + 20332.

It is an arithmetic number, because the mean of its divisors is an integer number (4084420).

Almost surely, 2^16297423 is an apocalyptic number.

16297423 is a deficient number, since it is larger than the sum of its proper divisors (40257).

16297423 is an equidigital number, since it uses as much as digits as its factorization.

16297423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40256.

The product of its digits is 18144, while the sum is 34.

The square root of 16297423 is about 4037.0066881292. The cubic root of 16297423 is about 253.5360068260.

The spelling of 16297423 in words is "sixteen million, two hundred ninety-seven thousand, four hundred twenty-three".