8672549 has 4 divisors (see below), whose sum is σ = 8836236. Its totient is φ = 8508864.

The previous prime is 8672539. The next prime is 8672551. The reversal of 8672549 is 9452768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2512225 + 6160324 = 1585^2 + 2482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8672549 is a prime.

It is a d-powerful number, because it can be written as 8³ + 6⁷ + 7³ + 2²³ + 5⁵ + 4² + 9 .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8672509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81764 + ... + 81869.

It is an arithmetic number, because the mean of its divisors is an integer number (2209059).

Almost surely, 2^8672549 is an apocalyptic number.

It is an amenable number.

8672549 is a deficient number, since it is larger than the sum of its proper divisors (163687).

8672549 is a wasteful number, since it uses less digits than its factorization.

8672549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163686.

The product of its digits is 120960, while the sum is 41.

The square root of 8672549 is about 2944.9191839506. The cubic root of 8672549 is about 205.4544666593.

The spelling of 8672549 in words is "eight million, six hundred seventy-two thousand, five hundred forty-nine".