4987517 has 4 divisors (see below), whose sum is σ = 4992096. Its totient is φ = 4982940.

The previous prime is 4987501. The next prime is 4987523. The reversal of 4987517 is 7157894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7157894 = 2 ⋅3578947.

It is a cyclic number.

It is not a de Polignac number, because 4987517 - 2⁴ = 4987501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 3182.

It is an arithmetic number, because the mean of its divisors is an integer number (1248024).

Almost surely, 2^4987517 is an apocalyptic number.

It is an amenable number.

4987517 is a deficient number, since it is larger than the sum of its proper divisors (4579).

4987517 is a wasteful number, since it uses less digits than its factorization.

4987517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578.

The product of its digits is 70560, while the sum is 41.

The square root of 4987517 is about 2233.2749494856. The cubic root of 4987517 is about 170.8551718793.

The spelling of 4987517 in words is "four million, nine hundred eighty-seven thousand, five hundred seventeen".