29378989 has 6 divisors (see below), whose sum is σ = 29720810. Its totient is φ = 29041056.

The previous prime is 29378969. The next prime is 29379011. The reversal of 29378989 is 98987392.

It can be written as a sum of positive squares in 3 ways, for example, as 110889 + 29268100 = 333^2 + 5410^2 .

It is not a de Polignac number, because 29378989 - 2¹³ = 29370797 is a prime.

It is a Duffinian number.

29378989 is a modest number, since divided by 8989 gives 2937 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29378969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6067 + ... + 9775.

Almost surely, 2^29378989 is an apocalyptic number.

It is an amenable number.

29378989 is a deficient number, since it is larger than the sum of its proper divisors (341821).

29378989 is an frugal number, since it uses more digits than its factorization.

29378989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887 (or 3798 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The square root of 29378989 is about 5420.2388323763. The cubic root of 29378989 is about 308.5642556121.

The spelling of 29378989 in words is "twenty-nine million, three hundred seventy-eight thousand, nine hundred eighty-nine".