9878474093 has 2 divisors, whose sum is σ = 9878474094. Its totient is φ = 9878474092.

The previous prime is 9878474077. The next prime is 9878474161. The reversal of 9878474093 is 3904748789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9506640004 + 371834089 = 97502^2 + 19283^2 .

It is a cyclic number.

It is not a de Polignac number, because 9878474093 - 2⁴ = 9878474077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9878474003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4939237046 + 4939237047.

It is an arithmetic number, because the mean of its divisors is an integer number (4939237047).

Almost surely, 2^9878474093 is an apocalyptic number.

It is an amenable number.

9878474093 is a deficient number, since it is larger than the sum of its proper divisors (1).

9878474093 is an equidigital number, since it uses as much as digits as its factorization.

9878474093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The square root of 9878474093 is about 99390.5130935544. The cubic root of 9878474093 is about 2145.6717752166.

The spelling of 9878474093 in words is "nine billion, eight hundred seventy-eight million, four hundred seventy-four thousand, ninety-three".