29864971 has 12 divisors (see below), whose sum is σ = 33111792. Its totient is φ = 26880128.

The previous prime is 29864927. The next prime is 29864981. The reversal of 29864971 is 17946892.

It is not a de Polignac number, because 29864971 - 2¹¹ = 29862923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29864911) 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 11 ways as a sum of consecutive naturals, for example, 4401 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (2759316).

Almost surely, 2^29864971 is an apocalyptic number.

29864971 is a deficient number, since it is larger than the sum of its proper divisors (3246821).

29864971 is a wasteful number, since it uses less digits than its factorization.

29864971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550 (or 4533 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 29864971 is about 5464.8852686950. The cubic root of 29864971 is about 310.2563644156.

The spelling of 29864971 in words is "twenty-nine million, eight hundred sixty-four thousand, nine hundred seventy-one".