29899999 has 8 divisors (see below), whose sum is σ = 30381120. Its totient is φ = 29421600.

The previous prime is 29899993. The next prime is 29900009. The reversal of 29899999 is 99999892.

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 29899999 - 2⁵ = 29899967 is a prime.

It is a Duffinian number.

29899999 is a modest number, since divided by 9999 gives 2989 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 29899999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29899993) 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, 36009 + ... + 36829.

It is an arithmetic number, because the mean of its divisors is an integer number (3797640).

Almost surely, 2^29899999 is an apocalyptic number.

29899999 is a deficient number, since it is larger than the sum of its proper divisors (481121).

29899999 is an equidigital number, since it uses as much as digits as its factorization.

29899999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its digits is 8503056, while the sum is 64.

The square root of 29899999 is about 5468.0891543573. The cubic root of 29899999 is about 310.3776147581.

The spelling of 29899999 in words is "twenty-nine million, eight hundred ninety-nine thousand, nine hundred ninety-nine".