89698123 has 2 divisors, whose sum is σ = 89698124. Its totient is φ = 89698122.

The previous prime is 89698099. The next prime is 89698127. The reversal of 89698123 is 32189698.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89698123 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (89698127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44849061 + 44849062.

It is an arithmetic number, because the mean of its divisors is an integer number (44849062).

Almost surely, 2^89698123 is an apocalyptic number.

89698123 is a deficient number, since it is larger than the sum of its proper divisors (1).

89698123 is an equidigital number, since it uses as much as digits as its factorization.

89698123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 89698123 is about 9470.9093016458. The cubic root of 89698123 is about 447.6388641379.

The spelling of 89698123 in words is "eighty-nine million, six hundred ninety-eight thousand, one hundred twenty-three".