4687540 has 72 divisors (see below), whose sum is σ = 11730600. Its totient is φ = 1562880.

The previous prime is 4687519. The next prime is 4687601. The reversal of 4687540 is 457864.

It can be written as a sum of positive squares in 4 ways, for example, as 39204 + 4648336 = 198^2 + 2156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4687496 and 4687505.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 31386 + ... + 31534.

It is an arithmetic number, because the mean of its divisors is an integer number (162925).

Almost surely, 2^4687540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4687540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5865300).

4687540 is an abundant number, since it is smaller than the sum of its proper divisors (7043060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4687540 is a wasteful number, since it uses less digits than its factorization.

4687540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 4687540 is about 2165.0727470457. The cubic root of 4687540 is about 167.3587135604.

It can be divided in two parts, 468 and 7540, that added together give a palindrome (8008).

The spelling of 4687540 in words is "four million, six hundred eighty-seven thousand, five hundred forty".