4987513 has 4 divisors (see below), whose sum is σ = 5033380. Its totient is φ = 4941648.

The previous prime is 4987501. The next prime is 4987523. The reversal of 4987513 is 3157894.

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 2155024 + 2832489 = 1468^2 + 1683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4987513 is a prime.

It is a Duffinian number.

4987513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4987523) 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, 22770 + ... + 22987.

It is an arithmetic number, because the mean of its divisors is an integer number (1258345).

Almost surely, 2^4987513 is an apocalyptic number.

It is an amenable number.

4987513 is a deficient number, since it is larger than the sum of its proper divisors (45867).

4987513 is a wasteful number, since it uses less digits than its factorization.

4987513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45866.

The product of its digits is 30240, while the sum is 37.

The square root of 4987513 is about 2233.2740539396. The cubic root of 4987513 is about 170.8551262039.

The spelling of 4987513 in words is "four million, nine hundred eighty-seven thousand, five hundred thirteen".