29972741 has 2 divisors, whose sum is σ = 29972742. Its totient is φ = 29972740.

The previous prime is 29972737. The next prime is 29972743. The reversal of 29972741 is 14727992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15880225 + 14092516 = 3985^2 + 3754^2 .

It is a cyclic number.

It is not a de Polignac number, because 29972741 - 2² = 29972737 is a prime.

Together with 29972743, 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 (29972743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14986370 + 14986371.

It is an arithmetic number, because the mean of its divisors is an integer number (14986371).

Almost surely, 2^29972741 is an apocalyptic number.

It is an amenable number.

29972741 is a deficient number, since it is larger than the sum of its proper divisors (1).

29972741 is an equidigital number, since it uses as much as digits as its factorization.

29972741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 41.

The square root of 29972741 is about 5474.7366146692. The cubic root of 29972741 is about 310.6291109092.

The spelling of 29972741 in words is "twenty-nine million, nine hundred seventy-two thousand, seven hundred forty-one".