99981753 has 8 divisors (see below), whose sum is σ = 133462848. Its totient is φ = 66577584.

The previous prime is 99981701. The next prime is 99981757. The reversal of 99981753 is 35718999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99981753 - 2¹⁶ = 99916217 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 99981696 and 99981705.

It is not an unprimeable number, because it can be changed into a prime (99981757) 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 7 ways as a sum of consecutive naturals, for example, 16126 + ... + 21447.

It is an arithmetic number, because the mean of its divisors is an integer number (16682856).

Almost surely, 2^99981753 is an apocalyptic number.

It is an amenable number.

99981753 is a deficient number, since it is larger than the sum of its proper divisors (33481095).

99981753 is a wasteful number, since it uses less digits than its factorization.

99981753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38463.

The product of its digits is 612360, while the sum is 51.

The square root of 99981753 is about 9999.0876083771. The cubic root of 99981753 is about 464.1306499535.

The spelling of 99981753 in words is "ninety-nine million, nine hundred eighty-one thousand, seven hundred fifty-three".