85878844 has 12 divisors (see below), whose sum is σ = 150488800. Its totient is φ = 42882048.

The previous prime is 85878829. The next prime is 85878847. The reversal of 85878844 is 44887858.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85878791 and 85878800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85878847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10884 + ... + 17035.

Almost surely, 2^85878844 is an apocalyptic number.

It is an amenable number.

85878844 is a deficient number, since it is larger than the sum of its proper divisors (64609956).

85878844 is a wasteful number, since it uses less digits than its factorization.

85878844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28692 (or 28690 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 52.

The square root of 85878844 is about 9267.0838994799. The cubic root of 85878844 is about 441.1931185254.

The spelling of 85878844 in words is "eighty-five million, eight hundred seventy-eight thousand, eight hundred forty-four".