85881013 has 8 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 84675168.

The previous prime is 85881001. The next prime is 85881023. The reversal of 85881013 is 31018858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85881013 - 2⁵ = 85880981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85881013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85881023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66508 + ... + 67786.

It is an arithmetic number, because the mean of its divisors is an integer number (10886400).

Almost surely, 2^85881013 is an apocalyptic number.

85881013 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

85881013 is a deficient number, since it is larger than the sum of its proper divisors (1210187).

85881013 is a wasteful number, since it uses less digits than its factorization.

85881013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 85881013 is about 9267.2009258459. The cubic root of 85881013 is about 441.1968328272.

The spelling of 85881013 in words is "eighty-five million, eight hundred eighty-one thousand, thirteen".