9620011998 has 12 divisors (see below), whose sum is σ = 20843359368. Its totient is φ = 3206670660.

The previous prime is 9620011981. The next prime is 9620012027. The reversal of 9620011998 is 8991100269.

9620011998 is a `hidden beast` number, since 9 + 620 + 0 + 1 + 19 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267222538 + ... + 267222573.

It is an arithmetic number, because the mean of its divisors is an integer number (1736946614).

Almost surely, 2^9620011998 is an apocalyptic number.

9620011998 is an abundant number, since it is smaller than the sum of its proper divisors (11223347370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9620011998 is a wasteful number, since it uses less digits than its factorization.

9620011998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534445119 (or 534445116 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 9620011998 is about 98081.6598452534. The cubic root of 9620011998 is about 2126.7929134618.

The spelling of 9620011998 in words is "nine billion, six hundred twenty million, eleven thousand, nine hundred ninety-eight".