9427009972 has 6 divisors (see below), whose sum is σ = 16497267458. Its totient is φ = 4713504984.

The previous prime is 9427009957. The next prime is 9427009973. The reversal of 9427009972 is 2799007249.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5530004496 + 3897005476 = 74364^2 + 62426^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9427009973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1178376243 + ... + 1178376250.

Almost surely, 2^9427009972 is an apocalyptic number.

It is an amenable number.

9427009972 is a deficient number, since it is larger than the sum of its proper divisors (7070257486).

9427009972 is a wasteful number, since it uses less digits than its factorization.

9427009972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356752497 (or 2356752495 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 9427009972 is about 97092.7905253526. The cubic root of 9427009972 is about 2112.4737555042.

The spelling of 9427009972 in words is "nine billion, four hundred twenty-seven million, nine thousand, nine hundred seventy-two".