85642446 has 8 divisors (see below), whose sum is σ = 171284904. Its totient is φ = 28547480.

The previous prime is 85642441. The next prime is 85642451. The reversal of 85642446 is 64424658.

It is an interprime number because it is at equal distance from previous prime (85642441) and next prime (85642451).

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

85642446 is an admirable number.

It is a super-3 number, since 3×85642446³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85642441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7136865 + ... + 7136876.

It is an arithmetic number, because the mean of its divisors is an integer number (21410613).

Almost surely, 2^85642446 is an apocalyptic number.

85642446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85642446 is a wasteful number, since it uses less digits than its factorization.

85642446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273746.

The product of its digits is 184320, while the sum is 39.

The square root of 85642446 is about 9254.3203964419. The cubic root of 85642446 is about 440.7879235945.

The spelling of 85642446 in words is "eighty-five million, six hundred forty-two thousand, four hundred forty-six".