99691416 has 72 divisors (see below), whose sum is σ = 296800140. Its totient is φ = 30206880.

The previous prime is 99691409. The next prime is 99691421. The reversal of 99691416 is 61419699.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2991 + ... + 14433.

Almost surely, 2^99691416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99691416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148400070).

99691416 is an abundant number, since it is smaller than the sum of its proper divisors (197108724).

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

99691416 is a wasteful number, since it uses less digits than its factorization.

99691416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11477 (or 11459 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 99691416 is about 9984.5588785885. The cubic root of 99691416 is about 463.6809514002.

The spelling of 99691416 in words is "ninety-nine million, six hundred ninety-one thousand, four hundred sixteen".