3958867 has 4 divisors (see below), whose sum is σ = 4318776. Its totient is φ = 3598960.

The previous prime is 3958847. The next prime is 3958879. The reversal of 3958867 is 7688593.

3958867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3958867 is a prime.

3958867 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3958817) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 179938 + ... + 179959.

It is an arithmetic number, because the mean of its divisors is an integer number (1079694).

Almost surely, 2^3958867 is an apocalyptic number.

3958867 is a deficient number, since it is larger than the sum of its proper divisors (359909).

3958867 is a wasteful number, since it uses less digits than its factorization.

3958867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359908.

The product of its digits is 362880, while the sum is 46.

The square root of 3958867 is about 1989.6901768868. The cubic root of 3958867 is about 158.1941079603.

The spelling of 3958867 in words is "three million, nine hundred fifty-eight thousand, eight hundred sixty-seven".