9399537216 has 56 divisors (see below), whose sum is σ = 27632903840. Its totient is φ = 3133178496.

The previous prime is 9399537209. The next prime is 9399537247. The reversal of 9399537216 is 6127359939.

It is a happy number.

9399537216 is a `hidden beast` number, since 9 + 3 + 99 + 537 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718046 + ... + 2721501.

Almost surely, 2^9399537216 is an apocalyptic number.

9399537216 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9399537216 is an abundant number, since it is smaller than the sum of its proper divisors (18233366624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9399537216 is a wasteful number, since it uses less digits than its factorization.

9399537216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439568 (or 5439552 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 9399537216 is about 96951.2104927009. The cubic root of 9399537216 is about 2110.4196597203.

The spelling of 9399537216 in words is "nine billion, three hundred ninety-nine million, five hundred thirty-seven thousand, two hundred sixteen".