29669987 has 8 divisors (see below), whose sum is σ = 30831840. Its totient is φ = 28517440.

The previous prime is 29669971. The next prime is 29669989. The reversal of 29669987 is 78996692.

29669987 is nontrivially palindromic in base 15.

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

It is not a de Polignac number, because 29669987 - 2⁴ = 29669971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29669989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4562 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (3853980).

Almost surely, 2^29669987 is an apocalyptic number.

29669987 is a deficient number, since it is larger than the sum of its proper divisors (1161853).

29669987 is a wasteful number, since it uses less digits than its factorization.

29669987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653.

The product of its digits is 2939328, while the sum is 56.

The square root of 29669987 is about 5447.0163392448. The cubic root of 29669987 is about 309.5796835760.

The spelling of 29669987 in words is "twenty-nine million, six hundred sixty-nine thousand, nine hundred eighty-seven".