999995628 has 12 divisors (see below), whose sum is σ = 2333323160. Its totient is φ = 333331872.

The previous prime is 999995627. The next prime is 999995629. The reversal of 999995628 is 826599999.

It is an interprime number because it is at equal distance from previous prime (999995627) and next prime (999995629).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×999995628² = 1999982512038228768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999995621) 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, 41666473 + ... + 41666496.

Almost surely, 2^999995628 is an apocalyptic number.

It is an amenable number.

999995628 is an abundant number, since it is smaller than the sum of its proper divisors (1333327532).

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

999995628 is a wasteful number, since it uses less digits than its factorization.

999995628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83332976 (or 83332974 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 66.

The square root of 999995628 is about 31622.7074742186. The cubic root of 999995628 is about 999.9985426645.

The spelling of 999995628 in words is "nine hundred ninety-nine million, nine hundred ninety-five thousand, six hundred twenty-eight".