29803121 has 8 divisors (see below), whose sum is σ = 30828288. Its totient is φ = 28782000.

The previous prime is 29803099. The next prime is 29803127. The reversal of 29803121 is 12130892.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29803121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29803127) 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, 24866 + ... + 26036.

It is an arithmetic number, because the mean of its divisors is an integer number (3853536).

Almost surely, 2^29803121 is an apocalyptic number.

It is an amenable number.

29803121 is a deficient number, since it is larger than the sum of its proper divisors (1025167).

29803121 is a wasteful number, since it uses less digits than its factorization.

29803121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 29803121 is about 5459.2234795802. The cubic root of 29803121 is about 310.0420373101.

The spelling of 29803121 in words is "twenty-nine million, eight hundred three thousand, one hundred twenty-one".