85988923 has 2 divisors, whose sum is σ = 85988924. Its totient is φ = 85988922.

The previous prime is 85988921. The next prime is 85988957. The reversal of 85988923 is 32988958.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85988923 - 2¹ = 85988921 is a prime.

Together with 85988921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (85988921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42994461 + 42994462.

It is an arithmetic number, because the mean of its divisors is an integer number (42994462).

Almost surely, 2^85988923 is an apocalyptic number.

85988923 is a deficient number, since it is larger than the sum of its proper divisors (1).

85988923 is an equidigital number, since it uses as much as digits as its factorization.

85988923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 52.

The square root of 85988923 is about 9273.0212444489. The cubic root of 85988923 is about 441.3815442937.

The spelling of 85988923 in words is "eighty-five million, nine hundred eighty-eight thousand, nine hundred twenty-three".