29812961 has 2 divisors, whose sum is σ = 29812962. Its totient is φ = 29812960.

The previous prime is 29812949. The next prime is 29812969. The reversal of 29812961 is 16921892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 3444736 = 5135^2 + 1856^2 .

It is a cyclic number.

It is not a de Polignac number, because 29812961 - 2¹⁰ = 29811937 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (29812969) 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, 14906480 + 14906481.

It is an arithmetic number, because the mean of its divisors is an integer number (14906481).

Almost surely, 2^29812961 is an apocalyptic number.

It is an amenable number.

29812961 is a deficient number, since it is larger than the sum of its proper divisors (1).

29812961 is an equidigital number, since it uses as much as digits as its factorization.

29812961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 29812961 is about 5460.1246322772. The cubic root of 29812961 is about 310.0761554141.

The spelling of 29812961 in words is "twenty-nine million, eight hundred twelve thousand, nine hundred sixty-one".