29189889 has 20 divisors (see below), whose sum is σ = 43813616. Its totient is φ = 19446804.

The previous prime is 29189887. The next prime is 29189959. The reversal of 29189889 is 98898192.

It is a happy number.

It is not a de Polignac number, because 29189889 - 2¹ = 29189887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29189887) 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 19 ways as a sum of consecutive naturals, for example, 18942 + ... + 20424.

Almost surely, 2^29189889 is an apocalyptic number.

It is an amenable number.

29189889 is a deficient number, since it is larger than the sum of its proper divisors (14623727).

29189889 is an frugal number, since it uses more digits than its factorization.

29189889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1486 counting only the distinct ones).

The product of its digits is 746496, while the sum is 54.

The square root of 29189889 is about 5402.7667911913. The cubic root of 29189889 is about 307.9007980121.

The spelling of 29189889 in words is "twenty-nine million, one hundred eighty-nine thousand, eight hundred eighty-nine".