979787 has 2 divisors, whose sum is σ = 979788. Its totient is φ = 979786.

The previous prime is 979757. The next prime is 979807. The reversal of 979787 is 787979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 979787 - 2¹² = 975691 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979787.

It is not a weakly prime, because it can be changed into another prime (979717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489893 + 489894.

It is an arithmetic number, because the mean of its divisors is an integer number (489894).

2⁹⁷⁹⁷⁸⁷ is an apocalyptic number.

979787 is a deficient number, since it is larger than the sum of its proper divisors (1).

979787 is an equidigital number, since it uses as much as digits as its factorization.

979787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 47.

The square root of 979787 is about 989.8419065689. The cubic root of 979787 is about 99.3216420435.

The spelling of 979787 in words is "nine hundred seventy-nine thousand, seven hundred eighty-seven".