99381726 has 12 divisors (see below), whose sum is σ = 215327112. Its totient is φ = 33127236.

The previous prime is 99381721. The next prime is 99381739. The reversal of 99381726 is 62718399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99381721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2760586 + ... + 2760621.

It is an arithmetic number, because the mean of its divisors is an integer number (17943926).

Almost surely, 2^99381726 is an apocalyptic number.

99381726 is an abundant number, since it is smaller than the sum of its proper divisors (115945386).

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

99381726 is a wasteful number, since it uses less digits than its factorization.

99381726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521215 (or 5521212 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 99381726 is about 9969.0383688699. The cubic root of 99381726 is about 463.2003138785.

It can be divided in two parts, 9938 and 1726, that added together give a square (11664 = 108²).

The spelling of 99381726 in words is "ninety-nine million, three hundred eighty-one thousand, seven hundred twenty-six".