85442885 has 8 divisors (see below), whose sum is σ = 111852576. Its totient is φ = 62140240.

The previous prime is 85442881. The next prime is 85442909. The reversal of 85442885 is 58824458.

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

It is not a de Polignac number, because 85442885 - 2² = 85442881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85442881) 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, 776699 + ... + 776808.

It is an arithmetic number, because the mean of its divisors is an integer number (13981572).

Almost surely, 2^85442885 is an apocalyptic number.

It is an amenable number.

85442885 is a deficient number, since it is larger than the sum of its proper divisors (26409691).

85442885 is a wasteful number, since it uses less digits than its factorization.

85442885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553523.

The product of its digits is 409600, while the sum is 44.

The square root of 85442885 is about 9243.5320630157. The cubic root of 85442885 is about 440.4452878451.

The spelling of 85442885 in words is "eighty-five million, four hundred forty-two thousand, eight hundred eighty-five".