89609393 has 2 divisors, whose sum is σ = 89609394. Its totient is φ = 89609392.

The previous prime is 89609389. The next prime is 89609411. The reversal of 89609393 is 39390698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55234624 + 34374769 = 7432^2 + 5863^2 .

It is a cyclic number.

It is not a de Polignac number, because 89609393 - 2² = 89609389 is a prime.

It is not a weakly prime, because it can be changed into another prime (89609323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44804696 + 44804697.

It is an arithmetic number, because the mean of its divisors is an integer number (44804697).

Almost surely, 2^89609393 is an apocalyptic number.

It is an amenable number.

89609393 is a deficient number, since it is larger than the sum of its proper divisors (1).

89609393 is an equidigital number, since it uses as much as digits as its factorization.

89609393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 89609393 is about 9466.2237983263. The cubic root of 89609393 is about 447.4912129606.

The spelling of 89609393 in words is "eighty-nine million, six hundred nine thousand, three hundred ninety-three".