29133987 has 8 divisors (see below), whose sum is σ = 38961936. Its totient is φ = 19364352.

The previous prime is 29133977. The next prime is 29133991. The reversal of 29133987 is 78933192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29133987 - 2²² = 24939683 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (29133917) 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 7 ways as a sum of consecutive naturals, for example, 13398 + ... + 15419.

It is an arithmetic number, because the mean of its divisors is an integer number (4870242).

Almost surely, 2^29133987 is an apocalyptic number.

29133987 is a deficient number, since it is larger than the sum of its proper divisors (9827949).

29133987 is a wasteful number, since it uses less digits than its factorization.

29133987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29157.

The product of its digits is 81648, while the sum is 42.

The square root of 29133987 is about 5397.5908514818. The cubic root of 29133987 is about 307.7041172374.

The spelling of 29133987 in words is "twenty-nine million, one hundred thirty-three thousand, nine hundred eighty-seven".