4787649 has 12 divisors (see below), whose sum is σ = 7046676. Its totient is φ = 3131232.

The previous prime is 4787647. The next prime is 4787669. The reversal of 4787649 is 9467874.

It can be written as a sum of positive squares in 2 ways, for example, as 2537649 + 2250000 = 1593^2 + 1500^2 .

It is not a de Polignac number, because 4787649 - 2¹ = 4787647 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 7 + 8 + 7⁴ + 6³ + 4⁵ + 9⁷ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4787641) 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, 4542 + ... + 5495.

It is an arithmetic number, because the mean of its divisors is an integer number (587223).

Almost surely, 2^4787649 is an apocalyptic number.

It is an amenable number.

4787649 is a deficient number, since it is larger than the sum of its proper divisors (2259027).

4787649 is a wasteful number, since it uses less digits than its factorization.

4787649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10096 (or 10093 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 4787649 is about 2188.0696972446. The cubic root of 4787649 is about 168.5417249410.

The spelling of 4787649 in words is "four million, seven hundred eighty-seven thousand, six hundred forty-nine".