7321733987 has 2 divisors, whose sum is σ = 7321733988. Its totient is φ = 7321733986.

The previous prime is 7321733981. The next prime is 7321734053. The reversal of 7321733987 is 7893371237.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7321733987 - 2¹⁰ = 7321732963 is a prime.

It is not a weakly prime, because it can be changed into another prime (7321733981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3660866993 + 3660866994.

It is an arithmetic number, because the mean of its divisors is an integer number (3660866994).

Almost surely, 2^7321733987 is an apocalyptic number.

7321733987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7321733987 is an equidigital number, since it uses as much as digits as its factorization.

7321733987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The square root of 7321733987 is about 85567.1314641317. The cubic root of 7321733987 is about 1941.8006793252.

The spelling of 7321733987 in words is "seven billion, three hundred twenty-one million, seven hundred thirty-three thousand, nine hundred eighty-seven".