29875989 has 36 divisors (see below), whose sum is σ = 47509728. Its totient is φ = 16679520.

The previous prime is 29875981. The next prime is 29875997. The reversal of 29875989 is 98957892.

It is an interprime number because it is at equal distance from previous prime (29875981) and next prime (29875997).

It is not a de Polignac number, because 29875989 - 2³ = 29875981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29875981) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61104 + ... + 61590.

Almost surely, 2^29875989 is an apocalyptic number.

29875989 is the 2922-nd nonagonal number.

It is an amenable number.

29875989 is a deficient number, since it is larger than the sum of its proper divisors (17633739).

29875989 is a wasteful number, since it uses less digits than its factorization.

29875989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 514 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 57.

The square root of 29875989 is about 5465.8932481343. The cubic root of 29875989 is about 310.2945137281.

The spelling of 29875989 in words is "twenty-nine million, eight hundred seventy-five thousand, nine hundred eighty-nine".