29889133 has 4 divisors (see below), whose sum is σ = 30525120. Its totient is φ = 29253148.

The previous prime is 29889113. The next prime is 29889163. The reversal of 29889133 is 33198892.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29889133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29889133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29889103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317923 + ... + 318016.

It is an arithmetic number, because the mean of its divisors is an integer number (7631280).

Almost surely, 2^29889133 is an apocalyptic number.

It is an amenable number.

29889133 is a deficient number, since it is larger than the sum of its proper divisors (635987).

29889133 is an equidigital number, since it uses as much as digits as its factorization.

29889133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635986.

The product of its digits is 93312, while the sum is 43.

The square root of 29889133 is about 5467.0954811490. The cubic root of 29889133 is about 310.3400119498.

It can be divided in two parts, 2988 and 9133, that added together give a palindrome (12121).

The spelling of 29889133 in words is "twenty-nine million, eight hundred eighty-nine thousand, one hundred thirty-three".