9773828478 has 12 divisors (see below), whose sum is σ = 21176628408. Its totient is φ = 3257942820.

The previous prime is 9773828429. The next prime is 9773828497. The reversal of 9773828478 is 8748283779.

9773828478 is a `hidden beast` number, since 97 + 73 + 8 + 2 + 8 + 478 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271495218 + ... + 271495253.

It is an arithmetic number, because the mean of its divisors is an integer number (1764719034).

Almost surely, 2^9773828478 is an apocalyptic number.

9773828478 is an abundant number, since it is smaller than the sum of its proper divisors (11402799930).

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

9773828478 is a wasteful number, since it uses less digits than its factorization.

9773828478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542990479 (or 542990476 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The square root of 9773828478 is about 98862.6748474873. The cubic root of 9773828478 is about 2138.0682831678.

The spelling of 9773828478 in words is "nine billion, seven hundred seventy-three million, eight hundred twenty-eight thousand, four hundred seventy-eight".