1005971 has 2 divisors, whose sum is σ = 1005972. Its totient is φ = 1005970.

The previous prime is 1005959. The next prime is 1005989. The reversal of 1005971 is 1795001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1005911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502985 + 502986.

It is an arithmetic number, because the mean of its divisors is an integer number (502986).

2^1005971 is an apocalyptic number.

1005971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005971 is an equidigital number, since it uses as much as digits as its factorization.

1005971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 1005971 is about 1002.9810566506. The cubic root of 1005971 is about 100.1986384995.

The spelling of 1005971 in words is "one million, five thousand, nine hundred seventy-one".