99777084 has 48 divisors (see below), whose sum is σ = 256118016. Its totient is φ = 30230640.

The previous prime is 99777077. The next prime is 99777091. The reversal of 99777084 is 48077799.

It is an interprime number because it is at equal distance from previous prime (99777077) and next prime (99777091).

It is a congruent number.

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, 12849 + ... + 19095.

It is an arithmetic number, because the mean of its divisors is an integer number (5335792).

Almost surely, 2^99777084 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 99777084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128059008).

99777084 is an abundant number, since it is smaller than the sum of its proper divisors (156340932).

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

99777084 is a wasteful number, since it uses less digits than its factorization.

99777084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287 (or 6263 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 99777084 is about 9988.8479816243. The cubic root of 99777084 is about 463.8137319627.

The spelling of 99777084 in words is "ninety-nine million, seven hundred seventy-seven thousand, eighty-four".