99881742 has 16 divisors (see below), whose sum is σ = 206652240. Its totient is φ = 32145792.

The previous prime is 99881729. The next prime is 99881767. The reversal of 99881742 is 24718899.

It is a junction number, because it is equal to n+sod(n) for n = 99881691 and 99881700.

It is a congruent number.

It is an unprimeable number.

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, 286843 + ... + 287190.

It is an arithmetic number, because the mean of its divisors is an integer number (12915765).

Almost surely, 2^99881742 is an apocalyptic number.

99881742 is an abundant number, since it is smaller than the sum of its proper divisors (106770498).

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

99881742 is a wasteful number, since it uses less digits than its factorization.

99881742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574067.

The product of its digits is 290304, while the sum is 48.

The square root of 99881742 is about 9994.0853508463. The cubic root of 99881742 is about 463.9758428515.

The spelling of 99881742 in words is "ninety-nine million, eight hundred eighty-one thousand, seven hundred forty-two".