9621684313 has 4 divisors (see below), whose sum is σ = 9658268928. Its totient is φ = 9585099700.

The previous prime is 9621684287. The next prime is 9621684349. The reversal of 9621684313 is 3134861269.

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: 3134861269 = 127 ⋅24683947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9621684313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9621684313.

It is not an unprimeable number, because it can be changed into a prime (9621684013) 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, 18291913 + ... + 18292438.

It is an arithmetic number, because the mean of its divisors is an integer number (2414567232).

Almost surely, 2^9621684313 is an apocalyptic number.

It is an amenable number.

9621684313 is a deficient number, since it is larger than the sum of its proper divisors (36584615).

9621684313 is a wasteful number, since it uses less digits than its factorization.

9621684313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36584614.

The product of its digits is 186624, while the sum is 43.

The square root of 9621684313 is about 98090.1845905083. The cubic root of 9621684313 is about 2126.9161448264.

The spelling of 9621684313 in words is "nine billion, six hundred twenty-one million, six hundred eighty-four thousand, three hundred thirteen".