29830231 has 4 divisors (see below), whose sum is σ = 29842200. Its totient is φ = 29818264.

The previous prime is 29830169. The next prime is 29830237. The reversal of 29830231 is 13203892.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29830231 is a prime.

It is a super-2 number, since 2×29830231² = 1779685363026722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29830231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29830237) 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, 676 + ... + 7753.

It is an arithmetic number, because the mean of its divisors is an integer number (7460550).

Almost surely, 2^29830231 is an apocalyptic number.

29830231 is a deficient number, since it is larger than the sum of its proper divisors (11969).

29830231 is an equidigital number, since it uses as much as digits as its factorization.

29830231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11968.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 29830231 is about 5461.7058690486. The cubic root of 29830231 is about 310.1360173147.

The spelling of 29830231 in words is "twenty-nine million, eight hundred thirty thousand, two hundred thirty-one".