4909855 has 16 divisors (see below), whose sum is σ = 6376320. Its totient is φ = 3615232.

The previous prime is 4909843. The next prime is 4909859. The reversal of 4909855 is 5589094.

It is a cyclic number.

It is not a de Polignac number, because 4909855 - 2⁵ = 4909823 is a prime.

It is a super-2 number, since 2×4909855² = 48213352242050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3381 + ... + 4609.

It is an arithmetic number, because the mean of its divisors is an integer number (398520).

Almost surely, 2^4909855 is an apocalyptic number.

4909855 is a deficient number, since it is larger than the sum of its proper divisors (1466465).

4909855 is a wasteful number, since it uses less digits than its factorization.

4909855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 4909855 is about 2215.8192615825. The cubic root of 4909855 is about 169.9637177472.

The spelling of 4909855 in words is "four million, nine hundred nine thousand, eight hundred fifty-five".