1027001 has 2 divisors, whose sum is σ = 1027002. Its totient is φ = 1027000.

The previous prime is 1026989. The next prime is 1027003. The reversal of 1027001 is 1007201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570025 + 456976 = 755^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027001 - 2¹⁴ = 1010617 is a prime.

Together with 1027003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1027003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513500 + 513501.

It is an arithmetic number, because the mean of its divisors is an integer number (513501).

2^1027001 is an apocalyptic number.

It is an amenable number.

1027001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027001 is an equidigital number, since it uses as much as digits as its factorization.

1027001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 1027001 is about 1013.4105781962. The cubic root of 1027001 is about 100.8920521019.

The spelling of 1027001 in words is "one million, twenty-seven thousand, one".