4973987 has 4 divisors (see below), whose sum is σ = 4984056. Its totient is φ = 4963920.

The previous prime is 4973959. The next prime is 4973989. The reversal of 4973987 is 7893794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4973987 - 2¹⁶ = 4908451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4973989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253 + ... + 5294.

It is an arithmetic number, because the mean of its divisors is an integer number (1246014).

Almost surely, 2^4973987 is an apocalyptic number.

4973987 is a deficient number, since it is larger than the sum of its proper divisors (10069).

4973987 is an equidigital number, since it uses as much as digits as its factorization.

4973987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068.

The product of its digits is 381024, while the sum is 47.

The square root of 4973987 is about 2230.2437086561. The cubic root of 4973987 is about 170.7005348808.

The spelling of 4973987 in words is "four million, nine hundred seventy-three thousand, nine hundred eighty-seven".