1111667 has 2 divisors, whose sum is σ = 1111668. Its totient is φ = 1111666.

The previous prime is 1111661. The next prime is 1111673. The reversal of 1111667 is 7661111.

It is a balanced prime because it is at equal distance from previous prime (1111661) and next prime (1111673).

It is an emirp because it is prime and its reverse (7661111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111667 - 2⁴ = 1111651 is a prime.

It is a super-3 number, since 3×1111667³ = 4121405971298333889, which contains 333 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1111661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555833 + 555834.

It is an arithmetic number, because the mean of its divisors is an integer number (555834).

2^1111667 is an apocalyptic number.

1111667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111667 is an equidigital number, since it uses as much as digits as its factorization.

1111667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 23.

The square root of 1111667 is about 1054.3562016700. The cubic root of 1111667 is about 103.5916867457.

Adding to 1111667 its reverse (7661111), we get a palindrome (8772778).

The spelling of 1111667 in words is "one million, one hundred eleven thousand, six hundred sixty-seven".