16746397 has 2 divisors, whose sum is σ = 16746398. Its totient is φ = 16746396.

The previous prime is 16746361. The next prime is 16746403. The reversal of 16746397 is 79364761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8844676 + 7901721 = 2974^2 + 2811^2 .

It is a cyclic number.

It is not a de Polignac number, because 16746397 - 2¹¹ = 16744349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16746337) 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 as a sum of consecutive naturals, namely, 8373198 + 8373199.

It is an arithmetic number, because the mean of its divisors is an integer number (8373199).

Almost surely, 2^16746397 is an apocalyptic number.

It is an amenable number.

16746397 is a deficient number, since it is larger than the sum of its proper divisors (1).

16746397 is an equidigital number, since it uses as much as digits as its factorization.

16746397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 16746397 is about 4092.2361857547. The cubic root of 16746397 is about 255.8431503788.

It can be divided in two parts, 167 and 46397, that added together give a palindrome (46564).

The spelling of 16746397 in words is "sixteen million, seven hundred forty-six thousand, three hundred ninety-seven".