89842859 has 2 divisors, whose sum is σ = 89842860. Its totient is φ = 89842858.

The previous prime is 89842801. The next prime is 89842873. The reversal of 89842859 is 95824898.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89842859 is a prime.

It is a super-4 number, since 4×89842859⁴ (a number of 33 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89842859.

It is not a weakly prime, because it can be changed into another prime (89842559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44921429 + 44921430.

It is an arithmetic number, because the mean of its divisors is an integer number (44921430).

Almost surely, 2^89842859 is an apocalyptic number.

89842859 is a deficient number, since it is larger than the sum of its proper divisors (1).

89842859 is an equidigital number, since it uses as much as digits as its factorization.

89842859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 53.

The square root of 89842859 is about 9478.5473043078. The cubic root of 89842859 is about 447.8795032944.

The spelling of 89842859 in words is "eighty-nine million, eight hundred forty-two thousand, eight hundred fifty-nine".