9934508405 has 4 divisors (see below), whose sum is σ = 11921410092. Its totient is φ = 7947606720.

The previous prime is 9934508401. The next prime is 9934508407. The reversal of 9934508405 is 5048054399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5048054399 = 16193 ⋅311743.

It can be written as a sum of positive squares in 2 ways, for example, as 1289599921 + 8644908484 = 35911^2 + 92978^2 .

It is not a de Polignac number, because 9934508405 - 2² = 9934508401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9934508405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9934508401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993450836 + ... + 993450845.

It is an arithmetic number, because the mean of its divisors is an integer number (2980352523).

Almost surely, 2^9934508405 is an apocalyptic number.

It is an amenable number.

9934508405 is a deficient number, since it is larger than the sum of its proper divisors (1986901687).

9934508405 is a wasteful number, since it uses less digits than its factorization.

9934508405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986901686.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 9934508405 is about 99672.0041185086. The cubic root of 9934508405 is about 2149.7211396034.

The spelling of 9934508405 in words is "nine billion, nine hundred thirty-four million, five hundred eight thousand, four hundred five".