798964987 has 2 divisors, whose sum is σ = 798964988. Its totient is φ = 798964986.

The previous prime is 798964981. The next prime is 798965039. The reversal of 798964987 is 789469897.

It is a weak prime.

It is an emirp because it is prime and its reverse (789469897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 798964987 - 2³ = 798964979 is a prime.

It is not a weakly prime, because it can be changed into another prime (798964981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399482493 + 399482494.

It is an arithmetic number, because the mean of its divisors is an integer number (399482494).

Almost surely, 2^798964987 is an apocalyptic number.

798964987 is a deficient number, since it is larger than the sum of its proper divisors (1).

798964987 is an equidigital number, since it uses as much as digits as its factorization.

798964987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 67.

The square root of 798964987 is about 28265.9687079711. The cubic root of 798964987 is about 927.9172518834.

The spelling of 798964987 in words is "seven hundred ninety-eight million, nine hundred sixty-four thousand, nine hundred eighty-seven".