29979941 has 2 divisors, whose sum is σ = 29979942. Its totient is φ = 29979940.

The previous prime is 29979919. The next prime is 29979949. The reversal of 29979941 is 14997992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18105025 + 11874916 = 4255^2 + 3446^2 .

It is a cyclic number.

It is not a de Polignac number, because 29979941 - 2²² = 25785637 is a prime.

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 29979941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29979949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14989970 + 14989971.

It is an arithmetic number, because the mean of its divisors is an integer number (14989971).

Almost surely, 2^29979941 is an apocalyptic number.

It is an amenable number.

29979941 is a deficient number, since it is larger than the sum of its proper divisors (1).

29979941 is an equidigital number, since it uses as much as digits as its factorization.

29979941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 50.

The square root of 29979941 is about 5475.3941410642. The cubic root of 29979941 is about 310.6539818470.

The spelling of 29979941 in words is "twenty-nine million, nine hundred seventy-nine thousand, nine hundred forty-one".