29421629 has 4 divisors (see below), whose sum is σ = 29561280. Its totient is φ = 29281980.

The previous prime is 29421599. The next prime is 29421649. The reversal of 29421629 is 92612492.

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 not a de Polignac number, because 29421629 - 2¹² = 29417533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29421649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69509 + ... + 69930.

It is an arithmetic number, because the mean of its divisors is an integer number (7390320).

Almost surely, 2^29421629 is an apocalyptic number.

It is an amenable number.

29421629 is a deficient number, since it is larger than the sum of its proper divisors (139651).

29421629 is a wasteful number, since it uses less digits than its factorization.

29421629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139650.

The product of its digits is 15552, while the sum is 35.

The square root of 29421629 is about 5424.1708122072. The cubic root of 29421629 is about 308.7134645093.

The spelling of 29421629 in words is "twenty-nine million, four hundred twenty-one thousand, six hundred twenty-nine".