4987731 has 16 divisors (see below), whose sum is σ = 7673600. Its totient is φ = 2822688.

The previous prime is 4987729. The next prime is 4987769. The reversal of 4987731 is 1377894.

It is not a de Polignac number, because 4987731 - 2¹ = 4987729 is a prime.

It is a super-2 number, since 2×4987731² = 49754921056722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4987731.

It is not an unprimeable number, because it can be changed into a prime (4987721) 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 15 ways as a sum of consecutive naturals, for example, 1200 + ... + 3378.

It is an arithmetic number, because the mean of its divisors is an integer number (479600).

Almost surely, 2^4987731 is an apocalyptic number.

4987731 is a deficient number, since it is larger than the sum of its proper divisors (2685869).

4987731 is a wasteful number, since it uses less digits than its factorization.

4987731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its digits is 42336, while the sum is 39.

The square root of 4987731 is about 2233.3228606720. The cubic root of 4987731 is about 170.8576154789.

The spelling of 4987731 in words is "four million, nine hundred eighty-seven thousand, seven hundred thirty-one".