16930549 has 2 divisors, whose sum is σ = 16930550. Its totient is φ = 16930548.

The previous prime is 16930547. The next prime is 16930561. The reversal of 16930549 is 94503961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 79524 = 4105^2 + 282^2 .

It is a cyclic number.

It is not a de Polignac number, because 16930549 - 2¹ = 16930547 is a prime.

Together with 16930547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16930541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8465274 + 8465275.

It is an arithmetic number, because the mean of its divisors is an integer number (8465275).

Almost surely, 2^16930549 is an apocalyptic number.

It is an amenable number.

16930549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16930549 is an equidigital number, since it uses as much as digits as its factorization.

16930549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 16930549 is about 4114.6748352695. The cubic root of 16930549 is about 256.7775280540. Note that the first 3 decimals are identical.

The spelling of 16930549 in words is "sixteen million, nine hundred thirty thousand, five hundred forty-nine".