99881741 has 4 divisors (see below), whose sum is σ = 100310652. Its totient is φ = 99452832.

The previous prime is 99881729. The next prime is 99881767. The reversal of 99881741 is 14718899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14718899 = 13 ⋅1132223.

It can be written as a sum of positive squares in 2 ways, for example, as 68128516 + 31753225 = 8254^2 + 5635^2 .

It is a cyclic number.

It is not a de Polignac number, because 99881741 - 2²² = 95687437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99881711) 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 3 ways as a sum of consecutive naturals, for example, 214106 + ... + 214571.

It is an arithmetic number, because the mean of its divisors is an integer number (25077663).

Almost surely, 2^99881741 is an apocalyptic number.

It is an amenable number.

99881741 is a deficient number, since it is larger than the sum of its proper divisors (428911).

99881741 is a wasteful number, since it uses less digits than its factorization.

99881741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428910.

The product of its digits is 145152, while the sum is 47.

The square root of 99881741 is about 9994.0853008167. The cubic root of 99881741 is about 463.9758413031.

It can be divided in two parts, 998 and 81741, that multiplied together give a palindrome (81577518).

The spelling of 99881741 in words is "ninety-nine million, eight hundred eighty-one thousand, seven hundred forty-one".