89377009 has 2 divisors, whose sum is σ = 89377010. Its totient is φ = 89377008.

The previous prime is 89377003. The next prime is 89377063. The reversal of 89377009 is 90077398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48608784 + 40768225 = 6972^2 + 6385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89377009 is a prime.

It is not a weakly prime, because it can be changed into another prime (89377003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44688504 + 44688505.

It is an arithmetic number, because the mean of its divisors is an integer number (44688505).

Almost surely, 2^89377009 is an apocalyptic number.

It is an amenable number.

89377009 is a deficient number, since it is larger than the sum of its proper divisors (1).

89377009 is an equidigital number, since it uses as much as digits as its factorization.

89377009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 89377009 is about 9453.9414531718. The cubic root of 89377009 is about 447.1040518364.

The spelling of 89377009 in words is "eighty-nine million, three hundred seventy-seven thousand, nine".