29129091 has 8 divisors (see below), whose sum is σ = 38987520. Its totient is φ = 19345032.

The previous prime is 29129083. The next prime is 29129123. The reversal of 29129091 is 19092192.

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

It is not a de Polignac number, because 29129091 - 2³ = 29129083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29122091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17671 + ... + 19248.

It is an arithmetic number, because the mean of its divisors is an integer number (4873440).

Almost surely, 2^29129091 is an apocalyptic number.

29129091 is a deficient number, since it is larger than the sum of its proper divisors (9858429).

29129091 is a wasteful number, since it uses less digits than its factorization.

29129091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37185.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 29129091 is about 5397.1372967528. The cubic root of 29129091 is about 307.6868795949.

The spelling of 29129091 in words is "twenty-nine million, one hundred twenty-nine thousand, ninety-one".