29939081 has 2 divisors, whose sum is σ = 29939082. Its totient is φ = 29939080.

The previous prime is 29939053. The next prime is 29939083. The reversal of 29939081 is 18093992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24255625 + 5683456 = 4925^2 + 2384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29939081 is a prime.

It is a super-2 number, since 2×29939081² = 1792697142249122, which contains 22 as substring.

Together with 29939083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29939083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14969540 + 14969541.

It is an arithmetic number, because the mean of its divisors is an integer number (14969541).

Almost surely, 2^29939081 is an apocalyptic number.

It is an amenable number.

29939081 is a deficient number, since it is larger than the sum of its proper divisors (1).

29939081 is an equidigital number, since it uses as much as digits as its factorization.

29939081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 29939081 is about 5471.6616306201. The cubic root of 29939081 is about 310.5127864091.

The spelling of 29939081 in words is "twenty-nine million, nine hundred thirty-nine thousand, eighty-one".