4078755 has 32 divisors (see below), whose sum is σ = 7360320. Its totient is φ = 2169504.

The previous prime is 4078747. The next prime is 4078757. The reversal of 4078755 is 5578704.

It is not a de Polignac number, because 4078755 - 2³ = 4078747 is a prime.

4078755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4078757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10749 + ... + 11121.

It is an arithmetic number, because the mean of its divisors is an integer number (230010).

Almost surely, 2^4078755 is an apocalyptic number.

4078755 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4078755 is a deficient number, since it is larger than the sum of its proper divisors (3281565).

4078755 is an frugal number, since it uses more digits than its factorization.

4078755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 4078755 is about 2019.5927807358. The cubic root of 4078755 is about 159.7751398642.

The spelling of 4078755 in words is "four million, seventy-eight thousand, seven hundred fifty-five".