89609573 has 2 divisors, whose sum is σ = 89609574. Its totient is φ = 89609572.

The previous prime is 89609563. The next prime is 89609579. The reversal of 89609573 is 37590698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89434849 + 174724 = 9457^2 + 418^2 .

It is a cyclic number.

It is not a de Polignac number, because 89609573 - 2⁴ = 89609557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89609579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44804786 + 44804787.

It is an arithmetic number, because the mean of its divisors is an integer number (44804787).

Almost surely, 2^89609573 is an apocalyptic number.

It is an amenable number.

89609573 is a deficient number, since it is larger than the sum of its proper divisors (1).

89609573 is an equidigital number, since it uses as much as digits as its factorization.

89609573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 89609573 is about 9466.2333058086. The cubic root of 89609573 is about 447.4915125883.

The spelling of 89609573 in words is "eighty-nine million, six hundred nine thousand, five hundred seventy-three".