29680213 has 2 divisors, whose sum is σ = 29680214. Its totient is φ = 29680212.

The previous prime is 29680207. The next prime is 29680229. The reversal of 29680213 is 31208692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29669809 + 10404 = 5447^2 + 102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29680213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29680513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14840106 + 14840107.

It is an arithmetic number, because the mean of its divisors is an integer number (14840107).

Almost surely, 2^29680213 is an apocalyptic number.

It is an amenable number.

29680213 is a deficient number, since it is larger than the sum of its proper divisors (1).

29680213 is an equidigital number, since it uses as much as digits as its factorization.

29680213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 29680213 is about 5447.9549374054. The cubic root of 29680213 is about 309.6152458679.

The spelling of 29680213 in words is "twenty-nine million, six hundred eighty thousand, two hundred thirteen".