4067967 has 4 divisors (see below), whose sum is σ = 5423960. Its totient is φ = 2711976.

The previous prime is 4067963. The next prime is 4067969. The reversal of 4067967 is 7697604.

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

It is not a de Polignac number, because 4067967 - 2² = 4067963 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4067963) 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, 677992 + ... + 677997.

It is an arithmetic number, because the mean of its divisors is an integer number (1355990).

Almost surely, 2^4067967 is an apocalyptic number.

4067967 is a deficient number, since it is larger than the sum of its proper divisors (1355993).

4067967 is a wasteful number, since it uses less digits than its factorization.

4067967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355992.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 4067967 is about 2016.9201769034. The cubic root of 4067967 is about 159.6341510828.

The spelling of 4067967 in words is "four million, sixty-seven thousand, nine hundred sixty-seven".