9778130 has 8 divisors (see below), whose sum is σ = 17600652. Its totient is φ = 3911248.

The previous prime is 9778127. The next prime is 9778159. The reversal of 9778130 is 318779.

9778130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3127²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 9778129 + 1 = 3127^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9778130² = 191223652593800, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488897 + ... + 488916.

Almost surely, 2^9778130 is an apocalyptic number.

9778130 is a deficient number, since it is larger than the sum of its proper divisors (7822522).

9778130 is a wasteful number, since it uses less digits than its factorization.

9778130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977820.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 9778130 is about 3127.0001598977. Note that the first 3 decimals coincide. The cubic root of 9778130 is about 213.8381896163.

The spelling of 9778130 in words is "nine million, seven hundred seventy-eight thousand, one hundred thirty".