8520772 has 12 divisors (see below), whose sum is σ = 16058476. Its totient is φ = 3932640.

The previous prime is 8520761. The next prime is 8520793. The reversal of 8520772 is 2770258.

It can be written as a sum of positive squares in 2 ways, for example, as 602176 + 7918596 = 776^2 + 2814^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81879 + ... + 81982.

Almost surely, 2^8520772 is an apocalyptic number.

It is an amenable number.

8520772 is a deficient number, since it is larger than the sum of its proper divisors (7537704).

8520772 is a wasteful number, since it uses less digits than its factorization.

8520772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163878 (or 163876 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 8520772 is about 2919.0361422908. The cubic root of 8520772 is about 204.2488632708.

The spelling of 8520772 in words is "eight million, five hundred twenty thousand, seven hundred seventy-two".