4621855 has 32 divisors (see below), whose sum is σ = 6741504. Its totient is φ = 2975616.

The previous prime is 4621853. The next prime is 4621867. The reversal of 4621855 is 5581264.

It is not a de Polignac number, because 4621855 - 2¹ = 4621853 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 6² + 2¹⁵ + 1 + 8⁴ + 5² + 5⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621853) 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 31 ways as a sum of consecutive naturals, for example, 55644 + ... + 55726.

It is an arithmetic number, because the mean of its divisors is an integer number (210672).

Almost surely, 2^4621855 is an apocalyptic number.

4621855 is a deficient number, since it is larger than the sum of its proper divisors (2119649).

4621855 is a wasteful number, since it uses less digits than its factorization.

4621855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175.

The product of its digits is 9600, while the sum is 31.

The square root of 4621855 is about 2149.8499947671. The cubic root of 4621855 is about 166.5733188380.

It can be divided in two parts, 4621 and 855, that added together give a square (5476 = 74²).

The spelling of 4621855 in words is "four million, six hundred twenty-one thousand, eight hundred fifty-five".