29995221 has 8 divisors (see below), whose sum is σ = 40036480. Its totient is φ = 19975392.

The previous prime is 29995219. The next prime is 29995223. The reversal of 29995221 is 12259992.

It is an interprime number because it is at equal distance from previous prime (29995219) and next prime (29995223).

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

It is not a de Polignac number, because 29995221 - 2¹ = 29995219 is a prime.

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 29995221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29995223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741 + ... + 7938.

It is an arithmetic number, because the mean of its divisors is an integer number (5004560).

Almost surely, 2^29995221 is an apocalyptic number.

It is an amenable number.

29995221 is a deficient number, since it is larger than the sum of its proper divisors (10041259).

29995221 is a wasteful number, since it uses less digits than its factorization.

29995221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715.

The product of its digits is 29160, while the sum is 39.

The square root of 29995221 is about 5476.7892966591. The cubic root of 29995221 is about 310.7067503146.

The spelling of 29995221 in words is "twenty-nine million, nine hundred ninety-five thousand, two hundred twenty-one".