85943904 has 48 divisors (see below), whose sum is σ = 232888320. Its totient is φ = 27722880.

The previous prime is 85943903. The next prime is 85943947. The reversal of 85943904 is 40934958.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×85943904² = 14772709269522432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85943903) 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 7 ways as a sum of consecutive naturals, for example, 11464 + ... + 17415.

It is an arithmetic number, because the mean of its divisors is an integer number (4851840).

Almost surely, 2^85943904 is an apocalyptic number.

It is an amenable number.

85943904 is an abundant number, since it is smaller than the sum of its proper divisors (146944416).

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

85943904 is a wasteful number, since it uses less digits than its factorization.

85943904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28923 (or 28915 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 85943904 is about 9270.5935085085. The cubic root of 85943904 is about 441.3045032681.

The spelling of 85943904 in words is "eighty-five million, nine hundred forty-three thousand, nine hundred four".