99326405 has 4 divisors (see below), whose sum is σ = 119191692. Its totient is φ = 79461120.

The previous prime is 99326401. The next prime is 99326407. The reversal of 99326405 is 50462399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50462399 = 13 ⋅3881723.

It can be written as a sum of positive squares in 2 ways, for example, as 40742689 + 58583716 = 6383^2 + 7654^2 .

It is not a de Polignac number, because 99326405 - 2² = 99326401 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 (99326401) 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, 9932636 + ... + 9932645.

It is an arithmetic number, because the mean of its divisors is an integer number (29797923).

Almost surely, 2^99326405 is an apocalyptic number.

It is an amenable number.

99326405 is a deficient number, since it is larger than the sum of its proper divisors (19865287).

99326405 is a wasteful number, since it uses less digits than its factorization.

99326405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19865286.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 99326405 is about 9966.2633418950. The cubic root of 99326405 is about 463.1143508557.

The spelling of 99326405 in words is "ninety-nine million, three hundred twenty-six thousand, four hundred five".