2447649 has 12 divisors (see below), whose sum is σ = 3549312. Its totient is φ = 1625400.

The previous prime is 2447647. The next prime is 2447681. The reversal of 2447649 is 9467442.

2447649 is a `hidden beast` number, since 2 + 4 + 4 + 7 + 649 = 666.

It is not a de Polignac number, because 2447649 - 2¹ = 2447647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2447647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3564 + ... + 4194.

It is an arithmetic number, because the mean of its divisors is an integer number (295776).

2^2447649 is an apocalyptic number.

It is an amenable number.

2447649 is a deficient number, since it is larger than the sum of its proper divisors (1101663).

2447649 is a wasteful number, since it uses less digits than its factorization.

2447649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1065 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 2447649 is about 1564.4964045980. The cubic root of 2447649 is about 134.7668403381.

The spelling of 2447649 in words is "two million, four hundred forty-seven thousand, six hundred forty-nine".