8442667 has 2 divisors, whose sum is σ = 8442668. Its totient is φ = 8442666.

The previous prime is 8442653. The next prime is 8442671. The reversal of 8442667 is 7662448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8442667 - 2¹⁵ = 8409899 is a prime.

It is not a weakly prime, because it can be changed into another prime (8442607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221333 + 4221334.

It is an arithmetic number, because the mean of its divisors is an integer number (4221334).

Almost surely, 2^8442667 is an apocalyptic number.

8442667 is a deficient number, since it is larger than the sum of its proper divisors (1).

8442667 is an equidigital number, since it uses as much as digits as its factorization.

8442667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 8442667 is about 2905.6267826409. The cubic root of 8442667 is about 203.6228694930.

The spelling of 8442667 in words is "eight million, four hundred forty-two thousand, six hundred sixty-seven".