9399864069 has 12 divisors (see below), whose sum is σ = 13608944076. Its totient is φ = 6252100992.

The previous prime is 9399864013. The next prime is 9399864073. The reversal of 9399864069 is 9604689939.

It can be written as a sum of positive squares in 2 ways, for example, as 1854335844 + 7545528225 = 43062^2 + 86865^2 .

It is not a de Polignac number, because 9399864069 - 2²⁸ = 9131428613 is a prime.

It is a super-2 number, since 2×9399864069² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9399863997 and 9399864015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9399864169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1202142 + ... + 1209935.

It is an arithmetic number, because the mean of its divisors is an integer number (1134078673).

Almost surely, 2^9399864069 is an apocalyptic number.

It is an amenable number.

9399864069 is a deficient number, since it is larger than the sum of its proper divisors (4209080007).

9399864069 is a wasteful number, since it uses less digits than its factorization.

9399864069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412516 (or 2412513 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The square root of 9399864069 is about 96952.8961351852. The cubic root of 9399864069 is about 2110.4441215275. Note that the first 3 decimals are identical.

The spelling of 9399864069 in words is "nine billion, three hundred ninety-nine million, eight hundred sixty-four thousand, sixty-nine".