85111933 has 2 divisors, whose sum is σ = 85111934. Its totient is φ = 85111932.

The previous prime is 85111927. The next prime is 85111987. The reversal of 85111933 is 33911158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57790404 + 27321529 = 7602^2 + 5227^2 .

It is a cyclic number.

It is not a de Polignac number, because 85111933 - 2⁹ = 85111421 is a prime.

It is a super-2 number, since 2×85111933² = 14488082277992978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85111895 and 85111904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85111903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42555966 + 42555967.

It is an arithmetic number, because the mean of its divisors is an integer number (42555967).

Almost surely, 2^85111933 is an apocalyptic number.

It is an amenable number.

85111933 is a deficient number, since it is larger than the sum of its proper divisors (1).

85111933 is an equidigital number, since it uses as much as digits as its factorization.

85111933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 31.

The square root of 85111933 is about 9225.6128793701. The cubic root of 85111933 is about 439.8758826914.

The spelling of 85111933 in words is "eighty-five million, one hundred eleven thousand, nine hundred thirty-three".