29998081 has 8 divisors (see below), whose sum is σ = 31917024. Its totient is φ = 28096320.

The previous prime is 29998069. The next prime is 29998099. The reversal of 29998081 is 18089992.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 29998081 - 2⁷ = 29997953 is a prime.

It is a super-2 number, since 2×29998081² = 1799769727365122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29998061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595 + ... + 7768.

It is an arithmetic number, because the mean of its divisors is an integer number (3989628).

Almost surely, 2^29998081 is an apocalyptic number.

It is an amenable number.

29998081 is a deficient number, since it is larger than the sum of its proper divisors (1918943).

29998081 is a wasteful number, since it uses less digits than its factorization.

29998081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 29998081 is about 5477.0503923188. The cubic root of 29998081 is about 310.7166251439.

The spelling of 29998081 in words is "twenty-nine million, nine hundred ninety-eight thousand, eighty-one".