4078667 has 2 divisors, whose sum is σ = 4078668. Its totient is φ = 4078666.

The previous prime is 4078663. The next prime is 4078687. The reversal of 4078667 is 7668704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4078667 - 2² = 4078663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4078667.

It is not a weakly prime, because it can be changed into another prime (4078663) 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 as a sum of consecutive naturals, namely, 2039333 + 2039334.

It is an arithmetic number, because the mean of its divisors is an integer number (2039334).

Almost surely, 2^4078667 is an apocalyptic number.

4078667 is a deficient number, since it is larger than the sum of its proper divisors (1).

4078667 is an equidigital number, since it uses as much as digits as its factorization.

4078667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 4078667 is about 2019.5709940480. The cubic root of 4078667 is about 159.7739907951.

The spelling of 4078667 in words is "four million, seventy-eight thousand, six hundred sixty-seven".