8549649 has 6 divisors (see below), whose sum is σ = 12349506. Its totient is φ = 5699760.

The previous prime is 8549641. The next prime is 8549663. The reversal of 8549649 is 9469458.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6969600 + 1580049 = 2640^2 + 1257^2 .

It is not a de Polignac number, because 8549649 - 2³ = 8549641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8549641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 474972 + ... + 474989.

It is an arithmetic number, because the mean of its divisors is an integer number (2058251).

Almost surely, 2^8549649 is an apocalyptic number.

It is an amenable number.

8549649 is a deficient number, since it is larger than the sum of its proper divisors (3799857).

8549649 is a wasteful number, since it uses less digits than its factorization.

8549649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949967 (or 949964 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 8549649 is about 2923.9782830931. The cubic root of 8549649 is about 204.4793370681.

The spelling of 8549649 in words is "eight million, five hundred forty-nine thousand, six hundred forty-nine".