99397950 has 96 divisors (see below), whose sum is σ = 263126016. Its totient is φ = 24773760.

The previous prime is 99397939. The next prime is 99397951. The reversal of 99397950 is 5979399.

99397950 is a nontrivial binomial coefficient, being equal to C(14100, 2).

It is a junction number, because it is equal to n+sod(n) for n = 99397893 and 99397902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99397951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161844 + ... + 162456.

It is an arithmetic number, because the mean of its divisors is an integer number (2740896).

Almost surely, 2^99397950 is an apocalyptic number.

99397950 is the 14099-th triangular number and also the 7050-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99397950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131563008).

99397950 is an abundant number, since it is smaller than the sum of its proper divisors (163728066).

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

99397950 is a wasteful number, since it uses less digits than its factorization.

99397950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 688905, while the sum is 51.

The square root of 99397950 is about 9969.8520550708. The cubic root of 99397950 is about 463.2255182203.

The spelling of 99397950 in words is "ninety-nine million, three hundred ninety-seven thousand, nine hundred fifty".