1980707 has 2 divisors, whose sum is σ = 1980708. Its totient is φ = 1980706.

The previous prime is 1980703. The next prime is 1980743. The reversal of 1980707 is 7070891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1980707 - 2² = 1980703 is a prime.

It is not a weakly prime, because it can be changed into another prime (1980701) 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, 990353 + 990354.

It is an arithmetic number, because the mean of its divisors is an integer number (990354).

2^1980707 is an apocalyptic number.

1980707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980707 is an equidigital number, since it uses as much as digits as its factorization.

1980707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1980707 is about 1407.3759270358. The cubic root of 1980707 is about 125.5856676615.

The spelling of 1980707 in words is "one million, nine hundred eighty thousand, seven hundred seven".