29089866 has 32 divisors (see below), whose sum is σ = 63100800. Its totient is φ = 8887104.

The previous prime is 29089849. The next prime is 29089867. The reversal of 29089866 is 66898092.

It is not an unprimeable number, because it can be changed into a prime (29089867) 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 15 ways as a sum of consecutive naturals, for example, 10371 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (1971900).

Almost surely, 2^29089866 is an apocalyptic number.

29089866 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 29089866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31550400).

29089866 is an abundant number, since it is smaller than the sum of its proper divisors (34010934).

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

29089866 is a wasteful number, since it uses less digits than its factorization.

29089866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 29089866 is about 5393.5022017238. The cubic root of 29089866 is about 307.5487079958.

The spelling of 29089866 in words is "twenty-nine million, eighty-nine thousand, eight hundred sixty-six".