99021726 has 48 divisors (see below), whose sum is σ = 219220560. Its totient is φ = 32296320.

The previous prime is 99021697. The next prime is 99021751. The reversal of 99021726 is 62712099.

It is a super-3 number, since 3×99021726³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234996 + ... + 235416.

It is an arithmetic number, because the mean of its divisors is an integer number (4567095).

Almost surely, 2^99021726 is an apocalyptic number.

99021726 is an abundant number, since it is smaller than the sum of its proper divisors (120198834).

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

99021726 is a wasteful number, since it uses less digits than its factorization.

99021726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 99021726 is about 9950.9660837529. The cubic root of 99021726 is about 462.6403388096.

It can be divided in two parts, 9902 and 1726, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 99021726 in words is "ninety-nine million, twenty-one thousand, seven hundred twenty-six".