16397533 has 2 divisors, whose sum is σ = 16397534. Its totient is φ = 16397532.

The previous prime is 16397527. The next prime is 16397539. The reversal of 16397533 is 33579361.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (16397527) and next prime (16397539).

It can be written as a sum of positive squares in only one way, i.e., 15824484 + 573049 = 3978^2 + 757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16397533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16397492 and 16397501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16397539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8198766 + 8198767.

It is an arithmetic number, because the mean of its divisors is an integer number (8198767).

Almost surely, 2^16397533 is an apocalyptic number.

It is an amenable number.

16397533 is a deficient number, since it is larger than the sum of its proper divisors (1).

16397533 is an equidigital number, since it uses as much as digits as its factorization.

16397533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 37.

The square root of 16397533 is about 4049.3867436934. The cubic root of 16397533 is about 254.0540784270.

The spelling of 16397533 in words is "sixteen million, three hundred ninety-seven thousand, five hundred thirty-three".