16397013 has 4 divisors (see below), whose sum is σ = 21862688. Its totient is φ = 10931340.

The previous prime is 16397011. The next prime is 16397033. The reversal of 16397013 is 31079361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16397013 - 2¹ = 16397011 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 (16397011) 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, 2732833 + ... + 2732838.

It is an arithmetic number, because the mean of its divisors is an integer number (5465672).

Almost surely, 2^16397013 is an apocalyptic number.

It is an amenable number.

16397013 is a deficient number, since it is larger than the sum of its proper divisors (5465675).

16397013 is an equidigital number, since it uses as much as digits as its factorization.

16397013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465674.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 16397013 is about 4049.3225359312. The cubic root of 16397013 is about 254.0513928702.

The spelling of 16397013 in words is "sixteen million, three hundred ninety-seven thousand, thirteen".