8890387321 has 8 divisors (see below), whose sum is σ = 9118931400. Its totient is φ = 8664095232.

The previous prime is 8890387301. The next prime is 8890387327. The reversal of 8890387321 is 1237830988.

It can be written as a sum of positive squares in 4 ways, for example, as 2186871696 + 6703515625 = 46764^2 + 81875^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8890387321 - 2⁹ = 8890386809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8890387327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555000 + ... + 570793.

It is an arithmetic number, because the mean of its divisors is an integer number (1139866425).

Almost surely, 2^8890387321 is an apocalyptic number.

It is an amenable number.

8890387321 is a deficient number, since it is larger than the sum of its proper divisors (228544079).

8890387321 is a wasteful number, since it uses less digits than its factorization.

8890387321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125995.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 8890387321 is about 94288.8504596381. The cubic root of 8890387321 is about 2071.6047301867.

The spelling of 8890387321 in words is "eight billion, eight hundred ninety million, three hundred eighty-seven thousand, three hundred twenty-one".