29971361 has 8 divisors (see below), whose sum is σ = 34313280. Its totient is φ = 25644528.

The previous prime is 29971349. The next prime is 29971363. The reversal of 29971361 is 16317992.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-29971361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29971363) 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, 875 + ... + 7791.

It is an arithmetic number, because the mean of its divisors is an integer number (4289160).

Almost surely, 2^29971361 is an apocalyptic number.

It is an amenable number.

29971361 is a deficient number, since it is larger than the sum of its proper divisors (4341919).

29971361 is an equidigital number, since it uses as much as digits as its factorization.

29971361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543.

The product of its digits is 20412, while the sum is 38.

The square root of 29971361 is about 5474.6105797582. The cubic root of 29971361 is about 310.6243435246.

The spelling of 29971361 in words is "twenty-nine million, nine hundred seventy-one thousand, three hundred sixty-one".