29872986 has 64 divisors (see below), whose sum is σ = 72164736. Its totient is φ = 8121600.

The previous prime is 29872963. The next prime is 29872991. The reversal of 29872986 is 68927892.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31276 + ... + 32216.

It is an arithmetic number, because the mean of its divisors is an integer number (1127574).

Almost surely, 2^29872986 is an apocalyptic number.

29872986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 29872986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36082368).

29872986 is an abundant number, since it is smaller than the sum of its proper divisors (42291750).

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

29872986 is a wasteful number, since it uses less digits than its factorization.

29872986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007.

The product of its digits is 870912, while the sum is 51.

The square root of 29872986 is about 5465.6185377320. The cubic root of 29872986 is about 310.2841169102.

The spelling of 29872986 in words is "twenty-nine million, eight hundred seventy-two thousand, nine hundred eighty-six".