9878397037 has 2 divisors, whose sum is σ = 9878397038. Its totient is φ = 9878397036.

The previous prime is 9878397017. The next prime is 9878397047. The reversal of 9878397037 is 7307938789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7642431241 + 2235965796 = 87421^2 + 47286^2 .

It is a cyclic number.

It is not a de Polignac number, because 9878397037 - 2²³ = 9870008429 is a prime.

It is a super-3 number, since 3×9878397037³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9878397017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4939198518 + 4939198519.

It is an arithmetic number, because the mean of its divisors is an integer number (4939198519).

Almost surely, 2^9878397037 is an apocalyptic number.

It is an amenable number.

9878397037 is a deficient number, since it is larger than the sum of its proper divisors (1).

9878397037 is an equidigital number, since it uses as much as digits as its factorization.

9878397037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The square root of 9878397037 is about 99390.1254501673. The cubic root of 9878397037 is about 2145.6661961729. Note that the first 3 decimals are identical.

The spelling of 9878397037 in words is "nine billion, eight hundred seventy-eight million, three hundred ninety-seven thousand, thirty-seven".