85474917 has 24 divisors (see below), whose sum is σ = 135963360. Its totient is φ = 51312480.

The previous prime is 85474891. The next prime is 85474931. The reversal of 85474917 is 71947458.

It is a happy number.

It is not a de Polignac number, because 85474917 - 2⁷ = 85474789 is a prime.

It is a super-2 number, since 2×85474917² = 14611922872313778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85474517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6559 + ... + 14627.

It is an arithmetic number, because the mean of its divisors is an integer number (5665140).

Almost surely, 2^85474917 is an apocalyptic number.

It is an amenable number.

85474917 is a deficient number, since it is larger than the sum of its proper divisors (50488443).

85474917 is a wasteful number, since it uses less digits than its factorization.

85474917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193 (or 8190 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 85474917 is about 9245.2645716605. The cubic root of 85474917 is about 440.5003210242.

The spelling of 85474917 in words is "eighty-five million, four hundred seventy-four thousand, nine hundred seventeen".