8820889001 has 4 divisors (see below), whose sum is σ = 8821354452. Its totient is φ = 8820423552.

The previous prime is 8820888949. The next prime is 8820889003. The reversal of 8820889001 is 1009880288.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7878337600 + 942551401 = 88760^2 + 30701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8820889001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8820889003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203036 + ... + 242621.

It is an arithmetic number, because the mean of its divisors is an integer number (2205338613).

Almost surely, 2^8820889001 is an apocalyptic number.

It is an amenable number.

8820889001 is a deficient number, since it is larger than the sum of its proper divisors (465451).

8820889001 is a wasteful number, since it uses less digits than its factorization.

8820889001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465450.

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 8820889001 is about 93919.5879516089. The cubic root of 8820889001 is about 2066.1925234026.

The spelling of 8820889001 in words is "eight billion, eight hundred twenty million, eight hundred eighty-nine thousand, one".