4378855 has 32 divisors (see below), whose sum is σ = 6168960. Its totient is φ = 2956800.

The previous prime is 4378837. The next prime is 4378897. The reversal of 4378855 is 5588734.

It is not a de Polignac number, because 4378855 - 2⁷ = 4378727 is a prime.

It is a super-2 number, since 2×4378855² = 38348742222050, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 43305 + ... + 43405.

It is an arithmetic number, because the mean of its divisors is an integer number (192780).

Almost surely, 2^4378855 is an apocalyptic number.

4378855 is a deficient number, since it is larger than the sum of its proper divisors (1790105).

4378855 is a wasteful number, since it uses less digits than its factorization.

4378855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

The product of its digits is 134400, while the sum is 40.

The square root of 4378855 is about 2092.5713846844. The cubic root of 4378855 is about 163.6013393521.

The spelling of 4378855 in words is "four million, three hundred seventy-eight thousand, eight hundred fifty-five".