85786772 has 6 divisors (see below), whose sum is σ = 150126858. Its totient is φ = 42893384.

The previous prime is 85786759. The next prime is 85786793. The reversal of 85786772 is 27768758.

It can be written as a sum of positive squares in only one way, i.e., 71301136 + 14485636 = 8444^2 + 3806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85786772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10723343 + ... + 10723350.

It is an arithmetic number, because the mean of its divisors is an integer number (25021143).

Almost surely, 2^85786772 is an apocalyptic number.

It is an amenable number.

85786772 is a deficient number, since it is larger than the sum of its proper divisors (64340086).

85786772 is a wasteful number, since it uses less digits than its factorization.

85786772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21446697 (or 21446695 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 50.

The square root of 85786772 is about 9262.1148772837. The cubic root of 85786772 is about 441.0353922196.

The spelling of 85786772 in words is "eighty-five million, seven hundred eighty-six thousand, seven hundred seventy-two".