7213667 has 2 divisors, whose sum is σ = 7213668. Its totient is φ = 7213666.

The previous prime is 7213639. The next prime is 7213681. The reversal of 7213667 is 7663127.

It is a strong prime.

It is an emirp because it is prime and its reverse (7663127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7213667 - 2⁶ = 7213603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7213567) 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 as a sum of consecutive naturals, namely, 3606833 + 3606834.

It is an arithmetic number, because the mean of its divisors is an integer number (3606834).

Almost surely, 2^7213667 is an apocalyptic number.

7213667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7213667 is an equidigital number, since it uses as much as digits as its factorization.

7213667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 32.

The square root of 7213667 is about 2685.8270607022. The cubic root of 7213667 is about 193.2199788017.

The spelling of 7213667 in words is "seven million, two hundred thirteen thousand, six hundred sixty-seven".