9773803987 has 2 divisors, whose sum is σ = 9773803988. Its totient is φ = 9773803986.

The previous prime is 9773803973. The next prime is 9773803993. The reversal of 9773803987 is 7893083779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9773803987 - 2²³ = 9765415379 is a prime.

It is not a weakly prime, because it can be changed into another prime (9773803997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4886901993 + 4886901994.

It is an arithmetic number, because the mean of its divisors is an integer number (4886901994).

Almost surely, 2^9773803987 is an apocalyptic number.

9773803987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9773803987 is an equidigital number, since it uses as much as digits as its factorization.

9773803987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The square root of 9773803987 is about 98862.5509836763. The cubic root of 9773803987 is about 2138.0664973281.

The spelling of 9773803987 in words is "nine billion, seven hundred seventy-three million, eight hundred three thousand, nine hundred eighty-seven".