4678731 has 12 divisors (see below), whose sum is σ = 7114120. Its totient is φ = 2954880.

The previous prime is 4678727. The next prime is 4678741. The reversal of 4678731 is 1378764.

It is not a de Polignac number, because 4678731 - 2² = 4678727 is a prime.

It is a super-2 number, since 2×4678731² = 43781047540722, which contains 22 as substring.

It is a Duffinian number.

4678731 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4678721) 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 11 ways as a sum of consecutive naturals, for example, 13510 + ... + 13851.

Almost surely, 2^4678731 is an apocalyptic number.

4678731 is a deficient number, since it is larger than the sum of its proper divisors (2435389).

4678731 is a wasteful number, since it uses less digits than its factorization.

4678731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27386 (or 27383 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 4678731 is about 2163.0374476647. The cubic root of 4678731 is about 167.2538122426.

The spelling of 4678731 in words is "four million, six hundred seventy-eight thousand, seven hundred thirty-one".