8509012 has 24 divisors (see below), whose sum is σ = 15505952. Its totient is φ = 4082400.

The previous prime is 8509009. The next prime is 8509031. The reversal of 8509012 is 2109058.

It is a super-2 number, since 2×8509012² = 144806570432288, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10087 + ... + 10897.

Almost surely, 2^8509012 is an apocalyptic number.

It is an amenable number.

8509012 is a deficient number, since it is larger than the sum of its proper divisors (6996940).

8509012 is a wasteful number, since it uses less digits than its factorization.

8509012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 8509012 is about 2917.0210832286. The cubic root of 8509012 is about 204.1548548676.

The spelling of 8509012 in words is "eight million, five hundred nine thousand, twelve".