4820749 has 4 divisors (see below), whose sum is σ = 4838940. Its totient is φ = 4802560.

The previous prime is 4820747. The next prime is 4820759. The reversal of 4820749 is 9470284.

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 168100 + 4652649 = 410^2 + 2157^2 .

It is a cyclic number.

It is not a de Polignac number, because 4820749 - 2¹ = 4820747 is a prime.

It is a Duffinian number.

4820749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4820747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8692 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (1209735).

Almost surely, 2^4820749 is an apocalyptic number.

It is an amenable number.

4820749 is a deficient number, since it is larger than the sum of its proper divisors (18191).

4820749 is a wasteful number, since it uses less digits than its factorization.

4820749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18190.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4820749 is about 2195.6204134595. The cubic root of 4820749 is about 168.9292445659.

The spelling of 4820749 in words is "four million, eight hundred twenty thousand, seven hundred forty-nine".