4781539 has 16 divisors (see below), whose sum is σ = 6041088. Its totient is φ = 3687552.

The previous prime is 4781531. The next prime is 4781551. The reversal of 4781539 is 9351874.

It is a cyclic number.

It is not a de Polignac number, because 4781539 - 2³ = 4781531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4781498 and 4781507.

It is not an unprimeable number, because it can be changed into a prime (4781531) 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 15 ways as a sum of consecutive naturals, for example, 1864 + ... + 3610.

It is an arithmetic number, because the mean of its divisors is an integer number (377568).

Almost surely, 2^4781539 is an apocalyptic number.

4781539 is a deficient number, since it is larger than the sum of its proper divisors (1259549).

4781539 is a wasteful number, since it uses less digits than its factorization.

4781539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its digits is 30240, while the sum is 37.

The square root of 4781539 is about 2186.6730436899. The cubic root of 4781539 is about 168.4699967418.

The spelling of 4781539 in words is "four million, seven hundred eighty-one thousand, five hundred thirty-nine".