99651424 has 48 divisors (see below), whose sum is σ = 205873920. Its totient is φ = 47416320.

The previous prime is 99651403. The next prime is 99651427. The reversal of 99651424 is 42415699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99651427) 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 7 ways as a sum of consecutive naturals, for example, 67009 + ... + 68479.

It is an arithmetic number, because the mean of its divisors is an integer number (4289040).

Almost surely, 2^99651424 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 99651424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102936960).

99651424 is an abundant number, since it is smaller than the sum of its proper divisors (106222496).

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

99651424 is a wasteful number, since it uses less digits than its factorization.

99651424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1575 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 99651424 is about 9982.5559853176. Note that the first 3 decimals coincide. The cubic root of 99651424 is about 463.6189400137.

The spelling of 99651424 in words is "ninety-nine million, six hundred fifty-one thousand, four hundred twenty-four".