85569942 has 48 divisors (see below), whose sum is σ = 185095152. Its totient is φ = 26280960.

The previous prime is 85569917. The next prime is 85569961. The reversal of 85569942 is 24996558.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85569891 and 85569900.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 354942 + ... + 355182.

It is an arithmetic number, because the mean of its divisors is an integer number (3856149).

Almost surely, 2^85569942 is an apocalyptic number.

85569942 is an abundant number, since it is smaller than the sum of its proper divisors (99525210).

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

85569942 is a wasteful number, since it uses less digits than its factorization.

85569942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 322 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 85569942 is about 9250.4022615235. The cubic root of 85569942 is about 440.6634996590.

The spelling of 85569942 in words is "eighty-five million, five hundred sixty-nine thousand, nine hundred forty-two".