1920713 has 2 divisors, whose sum is σ = 1920714. Its totient is φ = 1920712.

The previous prime is 1920701. The next prime is 1920731. The reversal of 1920713 is 3170291.

Together with next prime (1920731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1420864 + 499849 = 1192^2 + 707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1920713 - 2¹⁰ = 1919689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1920013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960356 + 960357.

It is an arithmetic number, because the mean of its divisors is an integer number (960357).

2^1920713 is an apocalyptic number.

It is an amenable number.

1920713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1920713 is an equidigital number, since it uses as much as digits as its factorization.

1920713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1920713 is about 1385.8979038876. The cubic root of 1920713 is about 124.3046834506.

The spelling of 1920713 in words is "one million, nine hundred twenty thousand, seven hundred thirteen".