4787993 has 8 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 4080240.

The previous prime is 4787971. The next prime is 4788011. The reversal of 4787993 is 3997874.

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

It is a cyclic number.

It is not a de Polignac number, because 4787993 - 2⁸ = 4787737 is a prime.

It is a d-powerful number, because it can be written as 4 + 7³ + 8 + 7⁴ + 9² + 9⁷ + 3⁷ .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4787903) 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, 623 + ... + 3156.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^4787993 is an apocalyptic number.

It is an amenable number.

4787993 is a deficient number, since it is larger than the sum of its proper divisors (715687).

4787993 is a wasteful number, since it uses less digits than its factorization.

4787993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967.

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

The square root of 4787993 is about 2188.1483039319. The cubic root of 4787993 is about 168.5457615057.

The spelling of 4787993 in words is "four million, seven hundred eighty-seven thousand, nine hundred ninety-three".