29989799 has 16 divisors (see below), whose sum is σ = 35661120. Its totient is φ = 24675840.

The previous prime is 29989763. The next prime is 29989811. The reversal of 29989799 is 99798992.

It is not a de Polignac number, because 29989799 - 2¹⁶ = 29924263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29979799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48617 + ... + 49229.

It is an arithmetic number, because the mean of its divisors is an integer number (2228820).

Almost surely, 2^29989799 is an apocalyptic number.

29989799 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

29989799 is a deficient number, since it is larger than the sum of its proper divisors (5671321).

29989799 is a wasteful number, since it uses less digits than its factorization.

29989799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its digits is 6613488, while the sum is 62.

The square root of 29989799 is about 5476.2942762419. The cubic root of 29989799 is about 310.6880278486.

The spelling of 29989799 in words is "twenty-nine million, nine hundred eighty-nine thousand, seven hundred ninety-nine".