29900171 has 4 divisors (see below), whose sum is σ = 34171632. Its totient is φ = 25628712.

The previous prime is 29900137. The next prime is 29900201. The reversal of 29900171 is 17100992.

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

It is a cyclic number.

It is not a de Polignac number, because 29900171 - 2¹⁴ = 29883787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29900071) 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, 2135720 + ... + 2135733.

It is an arithmetic number, because the mean of its divisors is an integer number (8542908).

Almost surely, 2^29900171 is an apocalyptic number.

29900171 is a deficient number, since it is larger than the sum of its proper divisors (4271461).

29900171 is an equidigital number, since it uses as much as digits as its factorization.

29900171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271460.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 29900171 is about 5468.1048819495. The cubic root of 29900171 is about 310.3782099069.

The spelling of 29900171 in words is "twenty-nine million, nine hundred thousand, one hundred seventy-one".