99996690 has 64 divisors (see below), whose sum is σ = 248769792. Its totient is φ = 25708800.

The previous prime is 99996679. The next prime is 99996691. The reversal of 99996690 is 9669999.

It is a super-2 number, since 2×99996690² = 19998676021912200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99996690.

It is not an unprimeable number, because it can be changed into a prime (99996691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96475 + ... + 97505.

It is an arithmetic number, because the mean of its divisors is an integer number (3887028).

Almost surely, 2^99996690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99996690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124384896).

99996690 is an abundant number, since it is smaller than the sum of its proper divisors (148773102).

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

99996690 is a wasteful number, since it uses less digits than its factorization.

99996690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 2125764, while the sum is 57.

The square root of 99996690 is about 9999.8344986305. The cubic root of 99996690 is about 464.1537620851.

The spelling of 99996690 in words is "ninety-nine million, nine hundred ninety-six thousand, six hundred ninety".