4067878 has 4 divisors (see below), whose sum is σ = 6101820. Its totient is φ = 2033938.

The previous prime is 4067863. The next prime is 4067893. The reversal of 4067878 is 8787604.

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

It is an interprime number because it is at equal distance from previous prime (4067863) and next prime (4067893).

It is a self number, because there is not a number n which added to its sum of digits gives 4067878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1016968 + ... + 1016971.

It is an arithmetic number, because the mean of its divisors is an integer number (1525455).

Almost surely, 2^4067878 is an apocalyptic number.

4067878 is a deficient number, since it is larger than the sum of its proper divisors (2033942).

4067878 is a wasteful number, since it uses less digits than its factorization.

4067878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033941.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 4067878 is about 2016.8981134405. The cubic root of 4067878 is about 159.6329869024.

The spelling of 4067878 in words is "four million, sixty-seven thousand, eight hundred seventy-eight".