1920701 has 2 divisors, whose sum is σ = 1920702. Its totient is φ = 1920700.

The previous prime is 1920683. The next prime is 1920713. The reversal of 1920701 is 1070291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020100 + 900601 = 1010^2 + 949^2 .

It is an emirp because it is prime and its reverse (1070291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1920701 - 2⁶ = 1920637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1920731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960350 + 960351.

It is an arithmetic number, because the mean of its divisors is an integer number (960351).

2^1920701 is an apocalyptic number.

It is an amenable number.

1920701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1920701 is an equidigital number, since it uses as much as digits as its factorization.

1920701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 1920701 is about 1385.8935745576. The cubic root of 1920701 is about 124.3044245781.

Adding to 1920701 its reverse (1070291), we get a palindrome (2990992).

The spelling of 1920701 in words is "one million, nine hundred twenty thousand, seven hundred one".