1011671 has 2 divisors, whose sum is σ = 1011672. Its totient is φ = 1011670.

The previous prime is 1011667. The next prime is 1011677. The reversal of 1011671 is 1761101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1761101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011671 - 2² = 1011667 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505835 + 505836.

It is an arithmetic number, because the mean of its divisors is an integer number (505836).

2^1011671 is an apocalyptic number.

1011671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011671 is an equidigital number, since it uses as much as digits as its factorization.

1011671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 1011671 is about 1005.8185721093. The cubic root of 1011671 is about 100.3875296015.

Adding to 1011671 its reverse (1761101), we get a palindrome (2772772).

The spelling of 1011671 in words is "one million, eleven thousand, six hundred seventy-one".