1980907 has 2 divisors, whose sum is σ = 1980908. Its totient is φ = 1980906.

The previous prime is 1980899. The next prime is 1980911. The reversal of 1980907 is 7090891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1980907 - 2³ = 1980899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1980947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990453 + 990454.

It is an arithmetic number, because the mean of its divisors is an integer number (990454).

2^1980907 is an apocalyptic number.

1980907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980907 is an equidigital number, since it uses as much as digits as its factorization.

1980907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 1980907 is about 1407.4469794632. The cubic root of 1980907 is about 125.5898944836.

The spelling of 1980907 in words is "one million, nine hundred eighty thousand, nine hundred seven".