29887081 has 8 divisors (see below), whose sum is σ = 35334720. Its totient is φ = 24733968.

The previous prime is 29887079. The next prime is 29887087. The reversal of 29887081 is 18078892.

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

It is not a de Polignac number, because 29887081 - 2¹ = 29887079 is a prime.

It is a super-2 number, since 2×29887081² = 1786475221401122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29887087) 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, 73411 + ... + 73816.

It is an arithmetic number, because the mean of its divisors is an integer number (4416840).

Almost surely, 2^29887081 is an apocalyptic number.

It is an amenable number.

29887081 is a deficient number, since it is larger than the sum of its proper divisors (5447639).

29887081 is a wasteful number, since it uses less digits than its factorization.

29887081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147263.

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 29887081 is about 5466.9078097221. The cubic root of 29887081 is about 310.3329097891.

The spelling of 29887081 in words is "twenty-nine million, eight hundred eighty-seven thousand, eighty-one".