29957071 has 2 divisors, whose sum is σ = 29957072. Its totient is φ = 29957070.

The previous prime is 29957069. The next prime is 29957089. The reversal of 29957071 is 17075992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29957071 - 2¹ = 29957069 is a prime.

It is a super-2 number, since 2×29957071² = 1794852205798082, which contains 22 as substring.

Together with 29957069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29957021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14978535 + 14978536.

It is an arithmetic number, because the mean of its divisors is an integer number (14978536).

Almost surely, 2^29957071 is an apocalyptic number.

29957071 is a deficient number, since it is larger than the sum of its proper divisors (1).

29957071 is an equidigital number, since it uses as much as digits as its factorization.

29957071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 29957071 is about 5473.3053084950. The cubic root of 29957071 is about 310.5749683058.

The spelling of 29957071 in words is "twenty-nine million, nine hundred fifty-seven thousand, seventy-one".