979004987 has 2 divisors, whose sum is σ = 979004988. Its totient is φ = 979004986.

The previous prime is 979004981. The next prime is 979005007. The reversal of 979004987 is 789400979.

It is a weak prime.

It is an emirp because it is prime and its reverse (789400979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979004987 - 2²⁴ = 962227771 is a prime.

It is not a weakly prime, because it can be changed into another prime (979004981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489502493 + 489502494.

It is an arithmetic number, because the mean of its divisors is an integer number (489502494).

Almost surely, 2^979004987 is an apocalyptic number.

979004987 is a deficient number, since it is larger than the sum of its proper divisors (1).

979004987 is an equidigital number, since it uses as much as digits as its factorization.

979004987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 979004987 is about 31289.0553868282. The cubic root of 979004987 is about 992.9521062229.

The spelling of 979004987 in words is "nine hundred seventy-nine million, four thousand, nine hundred eighty-seven".