16397753 has 4 divisors (see below), whose sum is σ = 16566900. Its totient is φ = 16228608.

The previous prime is 16397747. The next prime is 16397761. The reversal of 16397753 is 35779361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35779361 = 47 ⋅761263.

It can be written as a sum of positive squares in 2 ways, for example, as 7795264 + 8602489 = 2792^2 + 2933^2 .

It is a cyclic number.

It is not a de Polignac number, because 16397753 - 2⁴ = 16397737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16397753.

It is not an unprimeable number, because it can be changed into a prime (16397713) 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, 84428 + ... + 84621.

It is an arithmetic number, because the mean of its divisors is an integer number (4141725).

Almost surely, 2^16397753 is an apocalyptic number.

It is an amenable number.

16397753 is a deficient number, since it is larger than the sum of its proper divisors (169147).

16397753 is an equidigital number, since it uses as much as digits as its factorization.

16397753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169146.

The product of its digits is 119070, while the sum is 41.

The square root of 16397753 is about 4049.4139082094. The cubic root of 16397753 is about 254.0552146070.

The spelling of 16397753 in words is "sixteen million, three hundred ninety-seven thousand, seven hundred fifty-three".