3967567 has 4 divisors (see below), whose sum is σ = 4059880. Its totient is φ = 3875256.

The previous prime is 3967553. The next prime is 3967571. The reversal of 3967567 is 7657693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7657693 = 41 ⋅186773.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3967567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 92269 = 3967567 / (3 + 9 + 6 + 7 + 5 + 6 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3967507) 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, 46092 + ... + 46177.

It is an arithmetic number, because the mean of its divisors is an integer number (1014970).

Almost surely, 2^3967567 is an apocalyptic number.

3967567 is a deficient number, since it is larger than the sum of its proper divisors (92313).

3967567 is an equidigital number, since it uses as much as digits as its factorization.

3967567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92312.

The product of its digits is 238140, while the sum is 43.

The square root of 3967567 is about 1991.8752470976. The cubic root of 3967567 is about 158.3099055518.

The spelling of 3967567 in words is "three million, nine hundred sixty-seven thousand, five hundred sixty-seven".