89391029 has 48 divisors (see below), whose sum is σ = 120516480. Its totient is φ = 64696320.

The previous prime is 89391007. The next prime is 89391031. The reversal of 89391029 is 92019398.

It is not a de Polignac number, because 89391029 - 2⁸ = 89390773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89391329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 921509 + ... + 921605.

It is an arithmetic number, because the mean of its divisors is an integer number (2510760).

Almost surely, 2^89391029 is an apocalyptic number.

It is an amenable number.

89391029 is a deficient number, since it is larger than the sum of its proper divisors (31125451).

89391029 is a wasteful number, since it uses less digits than its factorization.

89391029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 89391029 is about 9454.6829137735. The cubic root of 89391029 is about 447.1274287322.

The spelling of 89391029 in words is "eighty-nine million, three hundred ninety-one thousand, twenty-nine".