8939997000 has 512 divisors, whose sum is σ = 34936012800. Its totient is φ = 2095200000.

The previous prime is 8939996993. The next prime is 8939997013. The reversal of 8939997000 is 7999398.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9206515 + ... + 9207485.

It is an arithmetic number, because the mean of its divisors is an integer number (68234400).

Almost surely, 2^8939997000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8939997000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17468006400).

8939997000 is an abundant number, since it is smaller than the sum of its proper divisors (25996015800).

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

8939997000 is a wasteful number, since it uses less digits than its factorization.

8939997000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 8939997000 is about 94551.5573642233. The cubic root of 8939997000 is about 2075.4508721695.

The spelling of 8939997000 in words is "eight billion, nine hundred thirty-nine million, nine hundred ninety-seven thousand".