9999000690 has 32 divisors (see below), whose sum is σ = 27425831040. Its totient is φ = 2285485824.

The previous prime is 9999000689. The next prime is 9999000701. The reversal of 9999000690 is 960009999.

It is a super-2 number, since 2×9999000690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23806935 + ... + 23807354.

It is an arithmetic number, because the mean of its divisors is an integer number (857057220).

Almost surely, 2^9999000690 is an apocalyptic number.

9999000690 is an abundant number, since it is smaller than the sum of its proper divisors (17426830350).

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

9999000690 is a wasteful number, since it uses less digits than its factorization.

9999000690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47614306.

The product of its (nonzero) digits is 354294, while the sum is 51.

The square root of 9999000690 is about 99995.0033251662. The cubic root of 9999000690 is about 2154.3629227036.

The spelling of 9999000690 in words is "nine billion, nine hundred ninety-nine million, six hundred ninety", and thus it is an aban number.