9187898406 has 16 divisors (see below), whose sum is σ = 18627520944. Its totient is φ = 3020678784.

The previous prime is 9187898351. The next prime is 9187898413. The reversal of 9187898406 is 6048987819.

It is a self number, because there is not a number n which added to its sum of digits gives 9187898406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10488031 + ... + 10488906.

It is an arithmetic number, because the mean of its divisors is an integer number (1164220059).

Almost surely, 2^9187898406 is an apocalyptic number.

9187898406 is an abundant number, since it is smaller than the sum of its proper divisors (9439622538).

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

9187898406 is a wasteful number, since it uses less digits than its factorization.

9187898406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20977015.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The square root of 9187898406 is about 95853.5257880481. The cubic root of 9187898406 is about 2094.4599558483.

The spelling of 9187898406 in words is "nine billion, one hundred eighty-seven million, eight hundred ninety-eight thousand, four hundred six".