85881423 has 8 divisors (see below), whose sum is σ = 115141936. Its totient is φ = 56937600.

The previous prime is 85881421. The next prime is 85881437. The reversal of 85881423 is 32418858.

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

It is not a de Polignac number, because 85881423 - 2¹ = 85881421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85881421) 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, 78538 + ... + 79623.

It is an arithmetic number, because the mean of its divisors is an integer number (14392742).

Almost surely, 2^85881423 is an apocalyptic number.

85881423 is a deficient number, since it is larger than the sum of its proper divisors (29260513).

85881423 is a wasteful number, since it uses less digits than its factorization.

85881423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158345.

The product of its digits is 61440, while the sum is 39.

The square root of 85881423 is about 9267.2230468463. The cubic root of 85881423 is about 441.1975349242.

It can be divided in two parts, 8588 and 1423, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 85881423 in words is "eighty-five million, eight hundred eighty-one thousand, four hundred twenty-three".