16929293 has 2 divisors, whose sum is σ = 16929294. Its totient is φ = 16929292.

The previous prime is 16929287. The next prime is 16929329. The reversal of 16929293 is 39292961.

Together with next prime (16929329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16630084 + 299209 = 4078^2 + 547^2 .

It is an emirp because it is prime and its reverse (39292961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16929293 - 2⁴ = 16929277 is a prime.

It is a super-4 number, since 4×16929293⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16929293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16929203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8464646 + 8464647.

It is an arithmetic number, because the mean of its divisors is an integer number (8464647).

Almost surely, 2^16929293 is an apocalyptic number.

It is an amenable number.

16929293 is a deficient number, since it is larger than the sum of its proper divisors (1).

16929293 is an equidigital number, since it uses as much as digits as its factorization.

16929293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 16929293 is about 4114.5222079848. The cubic root of 16929293 is about 256.7711781802.

The spelling of 16929293 in words is "sixteen million, nine hundred twenty-nine thousand, two hundred ninety-three".