9999463927 has 4 divisors (see below), whose sum is σ = 10119939480. Its totient is φ = 9878988376.

The previous prime is 9999463889. The next prime is 9999463931. The reversal of 9999463927 is 7293649999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9999463927 - 2²³ = 9991075319 is a prime.

It is a super-2 number, since 2×9999463927² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999463997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60237652 + ... + 60237817.

It is an arithmetic number, because the mean of its divisors is an integer number (2529984870).

Almost surely, 2^9999463927 is an apocalyptic number.

9999463927 is a deficient number, since it is larger than the sum of its proper divisors (120475553).

9999463927 is a wasteful number, since it uses less digits than its factorization.

9999463927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120475552.

The product of its digits is 59521392, while the sum is 67.

The square root of 9999463927 is about 99997.3195990773. The cubic root of 9999463927 is about 2154.3961915350.

The spelling of 9999463927 in words is "nine billion, nine hundred ninety-nine million, four hundred sixty-three thousand, nine hundred twenty-seven".