99758124 has 72 divisors (see below), whose sum is σ = 264176640. Its totient is φ = 31701600.

The previous prime is 99758123. The next prime is 99758129. The reversal of 99758124 is 42185799.

It is a self number, because there is not a number n which added to its sum of digits gives 99758124.

It is not an unprimeable number, because it can be changed into a prime (99758123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78607 + ... + 79865.

It is an arithmetic number, because the mean of its divisors is an integer number (3669120).

Almost surely, 2^99758124 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 99758124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132088320).

99758124 is an abundant number, since it is smaller than the sum of its proper divisors (164418516).

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

99758124 is a wasteful number, since it uses less digits than its factorization.

99758124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1366 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 99758124 is about 9987.8988781425. The cubic root of 99758124 is about 463.7843515844.

The spelling of 99758124 in words is "ninety-nine million, seven hundred fifty-eight thousand, one hundred twenty-four".