85413845 has 16 divisors (see below), whose sum is σ = 115672320. Its totient is φ = 59976000.

The previous prime is 85413841. The next prime is 85413857. The reversal of 85413845 is 54831458.

It is not a de Polignac number, because 85413845 - 2² = 85413841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85413799 and 85413808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85413841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25181 + ... + 28370.

It is an arithmetic number, because the mean of its divisors is an integer number (7229520).

Almost surely, 2^85413845 is an apocalyptic number.

It is an amenable number.

85413845 is a deficient number, since it is larger than the sum of its proper divisors (30258475).

85413845 is a wasteful number, since it uses less digits than its factorization.

85413845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53596.

The product of its digits is 76800, while the sum is 38.

The square root of 85413845 is about 9241.9611014113. The cubic root of 85413845 is about 440.3953832392.

The spelling of 85413845 in words is "eighty-five million, four hundred thirteen thousand, eight hundred forty-five".