99770616 has 80 divisors (see below), whose sum is σ = 304876440. Its totient is φ = 30231360.

The previous prime is 99770609. The next prime is 99770651. The reversal of 99770616 is 61607799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 130 + ... + 14126.

Almost surely, 2^99770616 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 99770616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152438220).

99770616 is an abundant number, since it is smaller than the sum of its proper divisors (205105824).

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

99770616 is a wasteful number, since it uses less digits than its factorization.

99770616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14026 (or 14013 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 99770616 is about 9988.5242153183. The cubic root of 99770616 is about 463.8037095811.

The spelling of 99770616 in words is "ninety-nine million, seven hundred seventy thousand, six hundred sixteen".