99088613 has 4 divisors (see below), whose sum is σ = 106710828. Its totient is φ = 91466400.

The previous prime is 99088607. The next prime is 99088651. The reversal of 99088613 is 31688099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31688099 = 2039 ⋅15541.

It can be written as a sum of positive squares in 2 ways, for example, as 39150049 + 59938564 = 6257^2 + 7742^2 .

It is a cyclic number.

It is not a de Polignac number, because 99088613 - 2¹⁰ = 99087589 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 (99088603) 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, 3811088 + ... + 3811113.

It is an arithmetic number, because the mean of its divisors is an integer number (26677707).

Almost surely, 2^99088613 is an apocalyptic number.

It is an amenable number.

99088613 is a deficient number, since it is larger than the sum of its proper divisors (7622215).

99088613 is a wasteful number, since it uses less digits than its factorization.

99088613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622214.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 99088613 is about 9954.3263458659. The cubic root of 99088613 is about 462.7444831583.

The spelling of 99088613 in words is "ninety-nine million, eighty-eight thousand, six hundred thirteen".