4987491 has 8 divisors (see below), whose sum is σ = 6661200. Its totient is φ = 3319392.

The previous prime is 4987457. The next prime is 4987501. The reversal of 4987491 is 1947894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4987491 - 2⁶ = 4987427 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4987091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585 + ... + 3533.

It is an arithmetic number, because the mean of its divisors is an integer number (832650).

Almost surely, 2^4987491 is an apocalyptic number.

4987491 is a deficient number, since it is larger than the sum of its proper divisors (1673709).

4987491 is a wasteful number, since it uses less digits than its factorization.

4987491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its digits is 72576, while the sum is 42.

The square root of 4987491 is about 2233.2691284303. The cubic root of 4987491 is about 170.8548749886.

The spelling of 4987491 in words is "four million, nine hundred eighty-seven thousand, four hundred ninety-one".