29780089 has 4 divisors (see below), whose sum is σ = 29913856. Its totient is φ = 29646324.

The previous prime is 29780053. The next prime is 29780137. The reversal of 29780089 is 98008792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29780089 - 2⁷ = 29779961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29780029) 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 3 ways as a sum of consecutive naturals, for example, 66549 + ... + 66994.

It is an arithmetic number, because the mean of its divisors is an integer number (7478464).

Almost surely, 2^29780089 is an apocalyptic number.

It is an amenable number.

29780089 is a deficient number, since it is larger than the sum of its proper divisors (133767).

29780089 is a wasteful number, since it uses less digits than its factorization.

29780089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133766.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 29780089 is about 5457.1136143570. The cubic root of 29780089 is about 309.9621493849.

The spelling of 29780089 in words is "twenty-nine million, seven hundred eighty thousand, eighty-nine".