4781523 has 4 divisors (see below), whose sum is σ = 6375368. Its totient is φ = 3187680.

The previous prime is 4781519. The next prime is 4781527. The reversal of 4781523 is 3251874.

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

It is an interprime number because it is at equal distance from previous prime (4781519) and next prime (4781527).

It is not a de Polignac number, because 4781523 - 2² = 4781519 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4781527) 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, 796918 + ... + 796923.

It is an arithmetic number, because the mean of its divisors is an integer number (1593842).

Almost surely, 2^4781523 is an apocalyptic number.

4781523 is a deficient number, since it is larger than the sum of its proper divisors (1593845).

4781523 is a wasteful number, since it uses less digits than its factorization.

4781523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593844.

The product of its digits is 6720, while the sum is 30.

The square root of 4781523 is about 2186.6693851609. The cubic root of 4781523 is about 168.4698088300.

The spelling of 4781523 in words is "four million, seven hundred eighty-one thousand, five hundred twenty-three".