1970867 has 2 divisors, whose sum is σ = 1970868. Its totient is φ = 1970866.

The previous prime is 1970809. The next prime is 1970873. The reversal of 1970867 is 7680791.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7680791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1970867 - 2¹⁴ = 1954483 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1970867.

It is not a weakly prime, because it can be changed into another prime (1970467) 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, 985433 + 985434.

It is an arithmetic number, because the mean of its divisors is an integer number (985434).

2^1970867 is an apocalyptic number.

1970867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970867 is an equidigital number, since it uses as much as digits as its factorization.

1970867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 1970867 is about 1403.8757067490. The cubic root of 1970867 is about 125.3773556752.

The spelling of 1970867 in words is "one million, nine hundred seventy thousand, eight hundred sixty-seven".