29974971 has 8 divisors (see below), whose sum is σ = 43041040. Its totient is φ = 18446112.

The previous prime is 29974969. The next prime is 29974981. The reversal of 29974971 is 17947992.

It is a happy number.

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

It is not a de Polignac number, because 29974971 - 2¹ = 29974969 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 29974971.

It is not an unprimeable number, because it can be changed into a prime (29974981) 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, 384256 + ... + 384333.

It is an arithmetic number, because the mean of its divisors is an integer number (5380130).

Almost surely, 2^29974971 is an apocalyptic number.

29974971 is a deficient number, since it is larger than the sum of its proper divisors (13066069).

29974971 is a wasteful number, since it uses less digits than its factorization.

29974971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768605.

The product of its digits is 285768, while the sum is 48.

The square root of 29974971 is about 5474.9402736468. The cubic root of 29974971 is about 310.6368144170.

The spelling of 29974971 in words is "twenty-nine million, nine hundred seventy-four thousand, nine hundred seventy-one".