4501993 has 4 divisors (see below), whose sum is σ = 4738960. Its totient is φ = 4265028.

The previous prime is 4501969. The next prime is 4501999. The reversal of 4501993 is 3991054.

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 an emirpimes, since its reverse is a distinct semiprime: 3991054 = 2 ⋅1995527.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4501993 is a prime.

It is a super-3 number, since 3×4501993³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4501999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118455 + ... + 118492.

It is an arithmetic number, because the mean of its divisors is an integer number (1184740).

Almost surely, 2^4501993 is an apocalyptic number.

It is an amenable number.

4501993 is a deficient number, since it is larger than the sum of its proper divisors (236967).

4501993 is a wasteful number, since it uses less digits than its factorization.

4501993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236966.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 4501993 is about 2121.7900461639. The cubic root of 4501993 is about 165.1207319623.

The spelling of 4501993 in words is "four million, five hundred one thousand, nine hundred ninety-three".