4649731 has 4 divisors (see below), whose sum is σ = 4728600. Its totient is φ = 4570864.

The previous prime is 4649693. The next prime is 4649741. The reversal of 4649731 is 1379464.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4649731 - 2⁹ = 4649219 is a prime.

It is a super-2 number, since 2×4649731² = 43239996744722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4649741) 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, 39346 + ... + 39463.

It is an arithmetic number, because the mean of its divisors is an integer number (1182150).

Almost surely, 2^4649731 is an apocalyptic number.

4649731 is a deficient number, since it is larger than the sum of its proper divisors (78869).

4649731 is an equidigital number, since it uses as much as digits as its factorization.

4649731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78868.

The product of its digits is 18144, while the sum is 34.

The square root of 4649731 is about 2156.3234915012. The cubic root of 4649731 is about 166.9075348386.

The spelling of 4649731 in words is "four million, six hundred forty-nine thousand, seven hundred thirty-one".