1970797 has 4 divisors (see below), whose sum is σ = 1973916. Its totient is φ = 1967680.

The previous prime is 1970791. The next prime is 1970809. The reversal of 1970797 is 7970791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7970791 = 2251 ⋅3541.

It can be written as a sum of positive squares in 2 ways, for example, as 948676 + 1022121 = 974^2 + 1011^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970797 - 2¹¹ = 1968749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970791) 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 in 3 ways as a sum of consecutive naturals, for example, 238 + ... + 1999.

It is an arithmetic number, because the mean of its divisors is an integer number (493479).

2^1970797 is an apocalyptic number.

It is an amenable number.

1970797 is a deficient number, since it is larger than the sum of its proper divisors (3119).

1970797 is an equidigital number, since it uses as much as digits as its factorization.

1970797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118.

The product of its (nonzero) digits is 27783, while the sum is 40.

The square root of 1970797 is about 1403.8507755456. The cubic root of 1970797 is about 125.3758712999.

The spelling of 1970797 in words is "one million, nine hundred seventy thousand, seven hundred ninety-seven".