4640855 has 16 divisors (see below), whose sum is σ = 5836800. Its totient is φ = 3538080.

The previous prime is 4640843. The next prime is 4640863. The reversal of 4640855 is 5580464.

It is not a de Polignac number, because 4640855 - 2⁶ = 4640791 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 12056 + ... + 12434.

It is an arithmetic number, because the mean of its divisors is an integer number (364800).

Almost surely, 2^4640855 is an apocalyptic number.

4640855 is a deficient number, since it is larger than the sum of its proper divisors (1195945).

4640855 is a wasteful number, since it uses less digits than its factorization.

4640855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 4640855 is about 2154.2643756048. The cubic root of 4640855 is about 166.8012623858.

The spelling of 4640855 in words is "four million, six hundred forty thousand, eight hundred fifty-five".