29942837 has 2 divisors, whose sum is σ = 29942838. Its totient is φ = 29942836.

The previous prime is 29942789. The next prime is 29942839. The reversal of 29942837 is 73824992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28879876 + 1062961 = 5374^2 + 1031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29942837 is a prime.

Together with 29942839, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29942839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14971418 + 14971419.

It is an arithmetic number, because the mean of its divisors is an integer number (14971419).

Almost surely, 2^29942837 is an apocalyptic number.

It is an amenable number.

29942837 is a deficient number, since it is larger than the sum of its proper divisors (1).

29942837 is an equidigital number, since it uses as much as digits as its factorization.

29942837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 29942837 is about 5472.0048428341. The cubic root of 29942837 is about 310.5257709678.

The spelling of 29942837 in words is "twenty-nine million, nine hundred forty-two thousand, eight hundred thirty-seven".