4547993 has 6 divisors (see below), whose sum is σ = 4831566. Its totient is φ = 4280192.

The previous prime is 4547957. The next prime is 4548001. The reversal of 4547993 is 3997454.

It can be written as a sum of positive squares in 3 ways, for example, as 2917264 + 1630729 = 1708^2 + 1277^2 .

It is not a de Polignac number, because 4547993 - 2⁸ = 4547737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4547993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4547923) 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 5 ways as a sum of consecutive naturals, for example, 7580 + ... + 8157.

It is an arithmetic number, because the mean of its divisors is an integer number (805261).

Almost surely, 2^4547993 is an apocalyptic number.

It is an amenable number.

4547993 is a deficient number, since it is larger than the sum of its proper divisors (283573).

4547993 is a wasteful number, since it uses less digits than its factorization.

4547993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15771 (or 15754 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 4547993 is about 2132.6024008239. The cubic root of 4547993 is about 165.6812118681.

The spelling of 4547993 in words is "four million, five hundred forty-seven thousand, nine hundred ninety-three".