8312649 has 4 divisors (see below), whose sum is σ = 11083536. Its totient is φ = 5541764.

The previous prime is 8312611. The next prime is 8312651. The reversal of 8312649 is 9462138.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8312649 - 2⁹ = 8312137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8312669) 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, 1385439 + ... + 1385444.

It is an arithmetic number, because the mean of its divisors is an integer number (2770884).

Almost surely, 2^8312649 is an apocalyptic number.

It is an amenable number.

8312649 is a deficient number, since it is larger than the sum of its proper divisors (2770887).

8312649 is a wasteful number, since it uses less digits than its factorization.

8312649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770886.

The product of its digits is 10368, while the sum is 33.

The square root of 8312649 is about 2883.1664884290. The cubic root of 8312649 is about 202.5721858178.

The spelling of 8312649 in words is "eight million, three hundred twelve thousand, six hundred forty-nine".