85784968 has 8 divisors (see below), whose sum is σ = 160846830. Its totient is φ = 42892480.

The previous prime is 85784903. The next prime is 85784999. The reversal of 85784968 is 86948758.

It can be written as a sum of positive squares in only one way, i.e., 85784644 + 324 = 9262^2 + 18^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×85784968² = 14718121469522048, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 5361553 + ... + 5361568.

Almost surely, 2^85784968 is an apocalyptic number.

It is an amenable number.

85784968 is a deficient number, since it is larger than the sum of its proper divisors (75061862).

85784968 is a wasteful number, since it uses less digits than its factorization.

85784968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723127 (or 10723123 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The square root of 85784968 is about 9262.0174908062. The cubic root of 85784968 is about 441.0323007040.

The spelling of 85784968 in words is "eighty-five million, seven hundred eighty-four thousand, nine hundred sixty-eight".