99409750 has 64 divisors (see below), whose sum is σ = 208713024. Its totient is φ = 35136000.

The previous prime is 99409733. The next prime is 99409759. The reversal of 99409750 is 5790499.

It is a junction number, because it is equal to n+sod(n) for n = 99409697 and 99409706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99409759) 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, 101262 + ... + 102238.

It is an arithmetic number, because the mean of its divisors is an integer number (3261141).

Almost surely, 2^99409750 is an apocalyptic number.

99409750 is an abundant number, since it is smaller than the sum of its proper divisors (109303274).

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

99409750 is a wasteful number, since it uses less digits than its factorization.

99409750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 99409750 is about 9970.4438216160. The cubic root of 99409750 is about 463.2438480579.

The spelling of 99409750 in words is "ninety-nine million, four hundred nine thousand, seven hundred fifty".