85899953 has 2 divisors, whose sum is σ = 85899954. Its totient is φ = 85899952.

The previous prime is 85899949. The next prime is 85900013. The reversal of 85899953 is 35999858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75550864 + 10349089 = 8692^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 85899953 - 2² = 85899949 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85899053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42949976 + 42949977.

It is an arithmetic number, because the mean of its divisors is an integer number (42949977).

Almost surely, 2^85899953 is an apocalyptic number.

It is an amenable number.

85899953 is a deficient number, since it is larger than the sum of its proper divisors (1).

85899953 is an equidigital number, since it uses as much as digits as its factorization.

85899953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 56.

The square root of 85899953 is about 9268.2227530417. Note that the first 3 decimals coincide. The cubic root of 85899953 is about 441.2292639529.

The spelling of 85899953 in words is "eighty-five million, eight hundred ninety-nine thousand, nine hundred fifty-three".