1970791 has 2 divisors, whose sum is σ = 1970792. Its totient is φ = 1970790.

The previous prime is 1970783. The next prime is 1970809.

It is a happy number.

1970791 is nontrivially palindromic in base 8 and base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1970791 - 2³ = 1970783 is a prime.

1970791 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970711) 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, 985395 + 985396.

It is an arithmetic number, because the mean of its divisors is an integer number (985396).

2^1970791 is an apocalyptic number.

1970791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970791 is an equidigital number, since it uses as much as digits as its factorization.

1970791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 1970791 is about 1403.8486385647. The cubic root of 1970791 is about 125.3757440661.

The spelling of 1970791 in words is "one million, nine hundred seventy thousand, seven hundred ninety-one".