9420323687 has 2 divisors, whose sum is σ = 9420323688. Its totient is φ = 9420323686.

The previous prime is 9420323681. The next prime is 9420323723. The reversal of 9420323687 is 7863230249.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9420323687 - 2³⁰ = 8346581863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9420323681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710161843 + 4710161844.

It is an arithmetic number, because the mean of its divisors is an integer number (4710161844).

Almost surely, 2^9420323687 is an apocalyptic number.

9420323687 is a deficient number, since it is larger than the sum of its proper divisors (1).

9420323687 is an equidigital number, since it uses as much as digits as its factorization.

9420323687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 9420323687 is about 97058.3519693179. The cubic root of 9420323687 is about 2111.9742000664.

The spelling of 9420323687 in words is "nine billion, four hundred twenty million, three hundred twenty-three thousand, six hundred eighty-seven".