29989716 has 12 divisors (see below), whose sum is σ = 69976032. Its totient is φ = 9996568.

The previous prime is 29989703. The next prime is 29989747. The reversal of 29989716 is 61798992.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1249560 + ... + 1249583.

It is an arithmetic number, because the mean of its divisors is an integer number (5831336).

Almost surely, 2^29989716 is an apocalyptic number.

It is an amenable number.

29989716 is an abundant number, since it is smaller than the sum of its proper divisors (39986316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29989716 is a wasteful number, since it uses less digits than its factorization.

29989716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499150 (or 2499148 counting only the distinct ones).

The product of its digits is 489888, while the sum is 51.

The square root of 29989716 is about 5476.2866981194. The cubic root of 29989716 is about 310.6877412274.

The spelling of 29989716 in words is "twenty-nine million, nine hundred eighty-nine thousand, seven hundred sixteen".