9779034321 has 81 divisors (see below), whose sum is σ = 17518091409. Its totient is φ = 5240325888.

The previous prime is 9779034281. The next prime is 9779034359. The reversal of 9779034321 is 1234309779.

The square root of 9779034321 is 98889.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 37344321 + 9741690000 = 6111^2 + 98700^2 .

It is not a de Polignac number, because 9779034321 - 2¹³ = 9779026129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9779034371) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 35303235 + ... + 35303511.

Almost surely, 2^9779034321 is an apocalyptic number.

9779034321 is the 98889-th square number.

9779034321 is the 49445-th centered octagonal number.

It is an amenable number.

9779034321 is a deficient number, since it is larger than the sum of its proper divisors (7739057088).

9779034321 is a wasteful number, since it uses less digits than its factorization.

9779034321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The cubic root of 9779034321 is about 2138.4478161992.

The spelling of 9779034321 in words is "nine billion, seven hundred seventy-nine million, thirty-four thousand, three hundred twenty-one".