4989855 has 16 divisors (see below), whose sum is σ = 8598240. Its totient is φ = 2456448.

The previous prime is 4989851. The next prime is 4989863. The reversal of 4989855 is 5589894.

It is a happy number.

It is not a de Polignac number, because 4989855 - 2² = 4989851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989851) 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, 12600 + ... + 12989.

It is an arithmetic number, because the mean of its divisors is an integer number (537390).

Almost surely, 2^4989855 is an apocalyptic number.

4989855 is a deficient number, since it is larger than the sum of its proper divisors (3608385).

4989855 is a wasteful number, since it uses less digits than its factorization.

4989855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25610.

The product of its digits is 518400, while the sum is 48.

The square root of 4989855 is about 2233.7983346757. The cubic root of 4989855 is about 170.8818649873.

The spelling of 4989855 in words is "four million, nine hundred eighty-nine thousand, eight hundred fifty-five".