29957429 has 4 divisors (see below), whose sum is σ = 30688140. Its totient is φ = 29226720.

The previous prime is 29957407. The next prime is 29957437. The reversal of 29957429 is 92475992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 819025 + 29138404 = 905^2 + 5398^2 .

It is a cyclic number.

It is not a de Polignac number, because 29957429 - 2⁸ = 29957173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29957479) 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 in 3 ways as a sum of consecutive naturals, for example, 365294 + ... + 365375.

It is an arithmetic number, because the mean of its divisors is an integer number (7672035).

Almost surely, 2^29957429 is an apocalyptic number.

It is an amenable number.

29957429 is a deficient number, since it is larger than the sum of its proper divisors (730711).

29957429 is an equidigital number, since it uses as much as digits as its factorization.

29957429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730710.

The product of its digits is 408240, while the sum is 47.

The square root of 29957429 is about 5473.3380125843. The cubic root of 29957429 is about 310.5762054694.

The spelling of 29957429 in words is "twenty-nine million, nine hundred fifty-seven thousand, four hundred twenty-nine".