9372887428 has 6 divisors (see below), whose sum is σ = 16402553006. Its totient is φ = 4686443712.

The previous prime is 9372887411. The next prime is 9372887443. The reversal of 9372887428 is 8247882739.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7830126144 + 1542761284 = 88488^2 + 39278^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171610925 + ... + 1171610932.

Almost surely, 2^9372887428 is an apocalyptic number.

It is an amenable number.

9372887428 is a deficient number, since it is larger than the sum of its proper divisors (7029665578).

9372887428 is a wasteful number, since it uses less digits than its factorization.

9372887428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343221861 (or 2343221859 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The square root of 9372887428 is about 96813.6737656412. The cubic root of 9372887428 is about 2108.4232680466.

The spelling of 9372887428 in words is "nine billion, three hundred seventy-two million, eight hundred eighty-seven thousand, four hundred twenty-eight".