8977649 has 4 divisors (see below), whose sum is σ = 9505764. Its totient is φ = 8449536.

The previous prime is 8977607. The next prime is 8977651. The reversal of 8977649 is 9467798.

It is a happy number.

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 6630625 + 2347024 = 2575^2 + 1532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8977649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8977597 and 8977606.

It is not an unprimeable number, because it can be changed into a prime (8977679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264032 + ... + 264065.

It is an arithmetic number, because the mean of its divisors is an integer number (2376441).

Almost surely, 2^8977649 is an apocalyptic number.

It is an amenable number.

8977649 is a deficient number, since it is larger than the sum of its proper divisors (528115).

8977649 is a wasteful number, since it uses less digits than its factorization.

8977649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528114.

The product of its digits is 762048, while the sum is 50.

The square root of 8977649 is about 2996.2725176459. The cubic root of 8977649 is about 207.8360471443.

The spelling of 8977649 in words is "eight million, nine hundred seventy-seven thousand, six hundred forty-nine".