29968331 has 4 divisors (see below), whose sum is σ = 31731192. Its totient is φ = 28205472.

The previous prime is 29968327. The next prime is 29968343. The reversal of 29968331 is 13386992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29968331 - 2² = 29968327 is a prime.

It is a super-2 number, since 2×29968331² = 1796201725851122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29968321) 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, 881405 + ... + 881438.

It is an arithmetic number, because the mean of its divisors is an integer number (7932798).

Almost surely, 2^29968331 is an apocalyptic number.

29968331 is a deficient number, since it is larger than the sum of its proper divisors (1762861).

29968331 is a wasteful number, since it uses less digits than its factorization.

29968331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762860.

The product of its digits is 69984, while the sum is 41.

The square root of 29968331 is about 5474.3338407518. Note that the first 3 decimals coincide. The cubic root of 29968331 is about 310.6138754928.

The spelling of 29968331 in words is "twenty-nine million, nine hundred sixty-eight thousand, three hundred thirty-one".