9328777972 has 12 divisors (see below), whose sum is σ = 16339829380. Its totient is φ = 4660255296.

The previous prime is 9328777957. The next prime is 9328777973. The reversal of 9328777972 is 2797778239.

It can be written as a sum of positive squares in 2 ways, for example, as 5171623396 + 4157154576 = 71914^2 + 64476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9328777972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9328777973) 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, 1028343 + ... + 1037374.

Almost surely, 2^9328777972 is an apocalyptic number.

It is an amenable number.

9328777972 is a deficient number, since it is larger than the sum of its proper divisors (7011051408).

9328777972 is a wasteful number, since it uses less digits than its factorization.

9328777972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066850 (or 2066848 counting only the distinct ones).

The product of its digits is 18670176, while the sum is 61.

The square root of 9328777972 is about 96585.5991957393. The cubic root of 9328777972 is about 2105.1106041864.

The spelling of 9328777972 in words is "nine billion, three hundred twenty-eight million, seven hundred seventy-seven thousand, nine hundred seventy-two".