85549664 has 24 divisors (see below), whose sum is σ = 169319808. Its totient is φ = 42547840.

The previous prime is 85549663. The next prime is 85549669. The reversal of 85549664 is 46694558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85549663) 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, 887 + ... + 13110.

It is an arithmetic number, because the mean of its divisors is an integer number (7054992).

Almost surely, 2^85549664 is an apocalyptic number.

It is an amenable number.

85549664 is a deficient number, since it is larger than the sum of its proper divisors (83770144).

85549664 is a wasteful number, since it uses less digits than its factorization.

85549664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14198 (or 14190 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 85549664 is about 9249.3061361380. The cubic root of 85549664 is about 440.6286880566.

It can be divided in two parts, 855 and 49664, that multiplied together give a triangular number (42462720 = T₉₂₁₅).

The spelling of 85549664 in words is "eighty-five million, five hundred forty-nine thousand, six hundred sixty-four".