89356009 has 2 divisors, whose sum is σ = 89356010. Its totient is φ = 89356008.

The previous prime is 89355997. The next prime is 89356019. The reversal of 89356009 is 90065398.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80946009 + 8410000 = 8997^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 89356009 - 2⁷ = 89355881 is a prime.

It is not a weakly prime, because it can be changed into another prime (89356019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44678004 + 44678005.

It is an arithmetic number, because the mean of its divisors is an integer number (44678005).

Almost surely, 2^89356009 is an apocalyptic number.

It is an amenable number.

89356009 is a deficient number, since it is larger than the sum of its proper divisors (1).

89356009 is an equidigital number, since it uses as much as digits as its factorization.

89356009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 89356009 is about 9452.8307400482. The cubic root of 89356009 is about 447.0690319409.

The spelling of 89356009 in words is "eighty-nine million, three hundred fifty-six thousand, nine".