16507349 has 2 divisors, whose sum is σ = 16507350. Its totient is φ = 16507348.

The previous prime is 16507331. The next prime is 16507369. The reversal of 16507349 is 94370561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13010449 + 3496900 = 3607^2 + 1870^2 .

It is a cyclic number.

It is not a de Polignac number, because 16507349 - 2¹⁶ = 16441813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16507319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253674 + 8253675.

It is an arithmetic number, because the mean of its divisors is an integer number (8253675).

Almost surely, 2^16507349 is an apocalyptic number.

It is an amenable number.

16507349 is a deficient number, since it is larger than the sum of its proper divisors (1).

16507349 is an equidigital number, since it uses as much as digits as its factorization.

16507349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 16507349 is about 4062.9237009818. The cubic root of 16507349 is about 254.6199593246.

The spelling of 16507349 in words is "sixteen million, five hundred seven thousand, three hundred forty-nine".