99214720 has 128 divisors (see below), whose sum is σ = 274298400. Its totient is φ = 33914880.

The previous prime is 99214699. The next prime is 99214721. The reversal of 99214720 is 2741299.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99214721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119266 + ... + 120094.

Almost surely, 2^99214720 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 99214720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137149200).

99214720 is an abundant number, since it is smaller than the sum of its proper divisors (175083680).

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

99214720 is a wasteful number, since it uses less digits than its factorization.

99214720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 99214720 is about 9960.6586127625. The cubic root of 99214720 is about 462.9407067827.

It can be divided in two parts, 9921 and 4720, that added together give a palindrome (14641).

The spelling of 99214720 in words is "ninety-nine million, two hundred fourteen thousand, seven hundred twenty".