9424887866 has 4 divisors (see below), whose sum is σ = 14137331802. Its totient is φ = 4712443932.

The previous prime is 9424887841. The next prime is 9424887887. The reversal of 9424887866 is 6687884249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6687884249 = 19403 ⋅344683.

It can be written as a sum of positive squares in only one way, i.e., 9192782641 + 232105225 = 95879^2 + 15235^2 .

It is a super-2 number, since 2×9424887866² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9424887799 and 9424887808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2356221965 + ... + 2356221968.

Almost surely, 2^9424887866 is an apocalyptic number.

9424887866 is a deficient number, since it is larger than the sum of its proper divisors (4712443936).

9424887866 is a wasteful number, since it uses less digits than its factorization.

9424887866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712443935.

The product of its digits is 37158912, while the sum is 62.

The square root of 9424887866 is about 97081.8616735382. The cubic root of 9424887866 is about 2112.3152312331.

The spelling of 9424887866 in words is "nine billion, four hundred twenty-four million, eight hundred eighty-seven thousand, eight hundred sixty-six".