99537 has 4 divisors (see below), whose sum is σ = 132720. Its totient is φ = 66356.

The previous prime is 99529. The next prime is 99551. The reversal of 99537 is 73599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73599 = 3 ⋅24533.

It is a cyclic number.

It is not a de Polignac number, because 99537 - 2³ = 99529 is a prime.

It is a super-2 number, since 2×99537² = 19815228738, which contains 22 as substring.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 99498 and 99507.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 99537.

It is not an unprimeable number, because it can be changed into a prime (99527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16587 + ... + 16592.

It is an arithmetic number, because the mean of its divisors is an integer number (33180).

2⁹⁹⁵³⁷ is an apocalyptic number.

It is an amenable number.

99537 is a deficient number, since it is larger than the sum of its proper divisors (33183).

99537 is a wasteful number, since it uses less digits than its factorization.

99537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33182.

The product of its digits is 8505, while the sum is 33.

The square root of 99537 is about 315.4948494033. The cubic root of 99537 is about 46.3441423062.

It can be divided in two parts, 99 and 537, that added together give a palindrome (636).

The spelling of 99537 in words is "ninety-nine thousand, five hundred thirty-seven".