85881345 has 32 divisors (see below), whose sum is σ = 151732224. Its totient is φ = 41131200.

The previous prime is 85881343. The next prime is 85881353. The reversal of 85881345 is 54318858.

It is not a de Polignac number, because 85881345 - 2¹ = 85881343 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85881297 and 85881306.

It is not an unprimeable number, because it can be changed into a prime (85881343) 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 in 31 ways as a sum of consecutive naturals, for example, 10560 + ... + 16830.

It is an arithmetic number, because the mean of its divisors is an integer number (4741632).

Almost surely, 2^85881345 is an apocalyptic number.

It is an amenable number.

85881345 is a deficient number, since it is larger than the sum of its proper divisors (65850879).

85881345 is a wasteful number, since it uses less digits than its factorization.

85881345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373.

The product of its digits is 153600, while the sum is 42.

The square root of 85881345 is about 9267.2188384650. The cubic root of 85881345 is about 441.1974013547.

It can be divided in two parts, 858813 and 45, that added together give a palindrome (858858).

The spelling of 85881345 in words is "eighty-five million, eight hundred eighty-one thousand, three hundred forty-five".