8813797640 has 32 divisors (see below), whose sum is σ = 19873918080. Its totient is φ = 3517897152.

The previous prime is 8813797627. The next prime is 8813797709. The reversal of 8813797640 is 467973188.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219434 + ... + 256473.

It is an arithmetic number, because the mean of its divisors is an integer number (621059940).

Almost surely, 2^8813797640 is an apocalyptic number.

It is an amenable number.

8813797640 is an abundant number, since it is smaller than the sum of its proper divisors (11060120440).

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

8813797640 is a wasteful number, since it uses less digits than its factorization.

8813797640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476381 (or 476377 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 53.

The square root of 8813797640 is about 93881.8280605997. The cubic root of 8813797640 is about 2065.6386848478.

The spelling of 8813797640 in words is "eight billion, eight hundred thirteen million, seven hundred ninety-seven thousand, six hundred forty".