8649151 has 4 divisors (see below), whose sum is σ = 9884752. Its totient is φ = 7413552.

The previous prime is 8649103. The next prime is 8649187. The reversal of 8649151 is 1519468.

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 8649151 - 2⁷ = 8649023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8649191) 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, 617790 + ... + 617803.

It is an arithmetic number, because the mean of its divisors is an integer number (2471188).

Almost surely, 2^8649151 is an apocalyptic number.

8649151 is a deficient number, since it is larger than the sum of its proper divisors (1235601).

8649151 is a wasteful number, since it uses less digits than its factorization.

8649151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235600.

The product of its digits is 8640, while the sum is 34.

The square root of 8649151 is about 2940.9438960987. The cubic root of 8649151 is about 205.2695324375.

The spelling of 8649151 in words is "eight million, six hundred forty-nine thousand, one hundred fifty-one".