29864989 has 8 divisors (see below), whose sum is σ = 37234368. Its totient is φ = 23271360.

The previous prime is 29864981. The next prime is 29864999. The reversal of 29864989 is 98946892.

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

It is not a de Polignac number, because 29864989 - 2³ = 29864981 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 (29864981) 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, 193852 + ... + 194005.

It is an arithmetic number, because the mean of its divisors is an integer number (4654296).

Almost surely, 2^29864989 is an apocalyptic number.

It is an amenable number.

29864989 is a deficient number, since it is larger than the sum of its proper divisors (7369379).

29864989 is a wasteful number, since it uses less digits than its factorization.

29864989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387875.

The product of its digits is 2239488, while the sum is 55.

The square root of 29864989 is about 5464.8869155729. The cubic root of 29864989 is about 310.2564267474.

The spelling of 29864989 in words is "twenty-nine million, eight hundred sixty-four thousand, nine hundred eighty-nine".