99926428 has 12 divisors (see below), whose sum is σ = 199852912. Its totient is φ = 42825600.

The previous prime is 99926419. The next prime is 99926429. The reversal of 99926428 is 82462999.

It is a happy number.

99926428 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99926429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784373 + ... + 1784428.

Almost surely, 2^99926428 is an apocalyptic number.

It is an amenable number.

99926428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99926428 is a wasteful number, since it uses less digits than its factorization.

99926428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568812 (or 3568810 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 99926428 is about 9996.3207231461. The cubic root of 99926428 is about 464.0450251096.

The spelling of 99926428 in words is "ninety-nine million, nine hundred twenty-six thousand, four hundred twenty-eight".