8649081 has 48 divisors (see below), whose sum is σ = 15335424. Its totient is φ = 4590432.

The previous prime is 8649079. The next prime is 8649103. The reversal of 8649081 is 1809468.

It is a happy number.

8649081 is a `hidden beast` number, since 8 + 649 + 0 + 8 + 1 = 666.

8649081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8649081 - 2¹ = 8649079 is a prime.

It is a super-2 number, since 2×8649081² = 149613204289122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8649001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68040 + ... + 68166.

It is an arithmetic number, because the mean of its divisors is an integer number (319488).

Almost surely, 2^8649081 is an apocalyptic number.

It is an amenable number.

8649081 is a deficient number, since it is larger than the sum of its proper divisors (6686343).

8649081 is a wasteful number, since it uses less digits than its factorization.

8649081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8649081 is about 2940.9319951335. The cubic root of 8649081 is about 205.2689786681.

The spelling of 8649081 in words is "eight million, six hundred forty-nine thousand, eighty-one".