99613 has 8 divisors (see below), whose sum is σ = 107136. Its totient is φ = 92400.

The previous prime is 99611. The next prime is 99623. The reversal of 99613 is 31699.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 99613 - 2¹ = 99611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368 + ... + 1438.

It is an arithmetic number, because the mean of its divisors is an integer number (13392).

2⁹⁹⁶¹³ is an apocalyptic number.

It is an amenable number.

99613 is a deficient number, since it is larger than the sum of its proper divisors (7523).

99613 is a wasteful number, since it uses less digits than its factorization.

99613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155.

The product of its digits is 1458, while the sum is 28.

The square root of 99613 is about 315.6152721273. The cubic root of 99613 is about 46.3559344330.

The spelling of 99613 in words is "ninety-nine thousand, six hundred thirteen".