29993689 has 8 divisors (see below), whose sum is σ = 33209568. Its totient is φ = 26859360.

The previous prime is 29993683. The next prime is 29993731. The reversal of 29993689 is 98639992.

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

It is not a de Polignac number, because 29993689 - 2⁵ = 29993657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29993683) 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, 19612 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (4151196).

Almost surely, 2^29993689 is an apocalyptic number.

It is an amenable number.

29993689 is a deficient number, since it is larger than the sum of its proper divisors (3215879).

29993689 is a wasteful number, since it uses less digits than its factorization.

29993689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40775.

The product of its digits is 1889568, while the sum is 55.

The square root of 29993689 is about 5476.6494319063. The cubic root of 29993689 is about 310.7014604625.

The spelling of 29993689 in words is "twenty-nine million, nine hundred ninety-three thousand, six hundred eighty-nine".