89650709 has 2 divisors, whose sum is σ = 89650710. Its totient is φ = 89650708.

The previous prime is 89650703. The next prime is 89650727. The reversal of 89650709 is 90705698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60996100 + 28654609 = 7810^2 + 5353^2 .

It is a cyclic number.

It is not a de Polignac number, because 89650709 - 2²⁰ = 88602133 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 89650709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89650703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44825354 + 44825355.

It is an arithmetic number, because the mean of its divisors is an integer number (44825355).

Almost surely, 2^89650709 is an apocalyptic number.

It is an amenable number.

89650709 is a deficient number, since it is larger than the sum of its proper divisors (1).

89650709 is an equidigital number, since it uses as much as digits as its factorization.

89650709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 89650709 is about 9468.4058320290. The cubic root of 89650709 is about 447.5599769803.

The spelling of 89650709 in words is "eighty-nine million, six hundred fifty thousand, seven hundred nine".