4078115 has 4 divisors (see below), whose sum is σ = 4893744. Its totient is φ = 3262488.

The previous prime is 4078099. The next prime is 4078117. The reversal of 4078115 is 5118704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4078115 - 2⁴ = 4078099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4078117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407807 + ... + 407816.

It is an arithmetic number, because the mean of its divisors is an integer number (1223436).

Almost surely, 2^4078115 is an apocalyptic number.

4078115 is a deficient number, since it is larger than the sum of its proper divisors (815629).

4078115 is an equidigital number, since it uses as much as digits as its factorization.

4078115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815628.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 4078115 is about 2019.4343267361. The cubic root of 4078115 is about 159.7667826213.

The spelling of 4078115 in words is "four million, seventy-eight thousand, one hundred fifteen".