99313 has 4 divisors (see below), whose sum is σ = 104560. Its totient is φ = 94068.

The previous prime is 99289. The next prime is 99317. The reversal of 99313 is 31399.

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: 31399 = 17 ⋅1847.

It is a cyclic number.

It is not a de Polignac number, because 99313 - 2⁹ = 98801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2595 + ... + 2632.

It is an arithmetic number, because the mean of its divisors is an integer number (26140).

2⁹⁹³¹³ is an apocalyptic number.

It is an amenable number.

99313 is a deficient number, since it is larger than the sum of its proper divisors (5247).

99313 is a wasteful number, since it uses less digits than its factorization.

99313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5246.

The product of its digits is 729, while the sum is 25.

The square root of 99313 is about 315.1396515832. The cubic root of 99313 is about 46.3093516090.

The spelling of 99313 in words is "ninety-nine thousand, three hundred thirteen".