8649359 has 4 divisors (see below), whose sum is σ = 8726016. Its totient is φ = 8572704.

The previous prime is 8649353. The next prime is 8649367. The reversal of 8649359 is 9539468.

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

It is a cyclic number.

It is not a de Polignac number, because 8649359 - 2⁴ = 8649343 is a prime.

It is a super-2 number, since 2×8649359² = 149622822221762, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8649353) 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, 38159 + ... + 38384.

It is an arithmetic number, because the mean of its divisors is an integer number (2181504).

Almost surely, 2^8649359 is an apocalyptic number.

8649359 is a deficient number, since it is larger than the sum of its proper divisors (76657).

8649359 is a wasteful number, since it uses less digits than its factorization.

8649359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76656.

The product of its digits is 233280, while the sum is 44.

The square root of 8649359 is about 2940.9792586824. The cubic root of 8649359 is about 205.2711779062.

The spelling of 8649359 in words is "eight million, six hundred forty-nine thousand, three hundred fifty-nine".