9999486 has 48 divisors (see below), whose sum is σ = 25185888. Its totient is φ = 2808000.

The previous prime is 9999481. The next prime is 9999511. The reversal of 9999486 is 6849999.

It is a happy number.

9999486 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7036 + ... + 8336.

It is an arithmetic number, because the mean of its divisors is an integer number (524706).

Almost surely, 2^9999486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9999486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12592944).

9999486 is an abundant number, since it is smaller than the sum of its proper divisors (15186402).

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

9999486 is a wasteful number, since it uses less digits than its factorization.

9999486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1374 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 9999486 is about 3162.1963885882. The cubic root of 9999486 is about 215.4397776752.

The spelling of 9999486 in words is "nine million, nine hundred ninety-nine thousand, four hundred eighty-six".