4815993 has 48 divisors (see below), whose sum is σ = 8432640. Its totient is φ = 2388672.

The previous prime is 4815989. The next prime is 4815997. The reversal of 4815993 is 3995184.

It is an interprime number because it is at equal distance from previous prime (4815989) and next prime (4815997).

It is not a de Polignac number, because 4815993 - 2² = 4815989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

4815993 is a lucky number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4815997) 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 47 ways as a sum of consecutive naturals, for example, 81598 + ... + 81656.

It is an arithmetic number, because the mean of its divisors is an integer number (175680).

Almost surely, 2^4815993 is an apocalyptic number.

It is an amenable number.

4815993 is a deficient number, since it is larger than the sum of its proper divisors (3616647).

4815993 is a wasteful number, since it uses less digits than its factorization.

4815993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 105 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 4815993 is about 2194.5370810264. The cubic root of 4815993 is about 168.8736728526.

The spelling of 4815993 in words is "four million, eight hundred fifteen thousand, nine hundred ninety-three".