9907927955 has 4 divisors (see below), whose sum is σ = 11889513552. Its totient is φ = 7926342360.

The previous prime is 9907927921. The next prime is 9907927957. The reversal of 9907927955 is 5597297099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5597297099 = 2879 ⋅1944181.

It is not a de Polignac number, because 9907927955 - 2⁸ = 9907927699 is a prime.

It is a super-2 number, since 2×9907927955² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9907927957) 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, 990792791 + ... + 990792800.

It is an arithmetic number, because the mean of its divisors is an integer number (2972378388).

Almost surely, 2^9907927955 is an apocalyptic number.

9907927955 is a deficient number, since it is larger than the sum of its proper divisors (1981585597).

9907927955 is a wasteful number, since it uses less digits than its factorization.

9907927955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981585596.

The product of its (nonzero) digits is 16074450, while the sum is 62.

The square root of 9907927955 is about 99538.5752108196. The cubic root of 9907927955 is about 2147.8021856582.

The spelling of 9907927955 in words is "nine billion, nine hundred seven million, nine hundred twenty-seven thousand, nine hundred fifty-five".