89009973 has 12 divisors (see below), whose sum is σ = 138460140. Its totient is φ = 54775296.

The previous prime is 89009951. The next prime is 89009989. The reversal of 89009973 is 37990098.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50594769 + 38415204 = 7113^2 + 6198^2 .

It is not a de Polignac number, because 89009973 - 2⁹ = 89009461 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89009923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380268 + ... + 380501.

It is an arithmetic number, because the mean of its divisors is an integer number (11538345).

Almost surely, 2^89009973 is an apocalyptic number.

It is an amenable number.

89009973 is a deficient number, since it is larger than the sum of its proper divisors (49450167).

89009973 is a wasteful number, since it uses less digits than its factorization.

89009973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760788 (or 760785 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 89009973 is about 9434.5096851930. The cubic root of 89009973 is about 446.4911856782.

The spelling of 89009973 in words is "eighty-nine million, nine thousand, nine hundred seventy-three".