89729073 has 16 divisors (see below), whose sum is σ = 151922560. Its totient is φ = 51273648.

The previous prime is 89729051. The next prime is 89729083. The reversal of 89729073 is 37092798.

It is not a de Polignac number, because 89729073 - 2¹³ = 89720881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89729083) 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 15 ways as a sum of consecutive naturals, for example, 237190 + ... + 237567.

It is an arithmetic number, because the mean of its divisors is an integer number (9495160).

Almost surely, 2^89729073 is an apocalyptic number.

It is an amenable number.

89729073 is a deficient number, since it is larger than the sum of its proper divisors (62193487).

89729073 is a wasteful number, since it uses less digits than its factorization.

89729073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474773 (or 474767 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 89729073 is about 9472.5431115408. The cubic root of 89729073 is about 447.6903435863.

The spelling of 89729073 in words is "eighty-nine million, seven hundred twenty-nine thousand, seventy-three".