8397984270 has 32 divisors (see below), whose sum is σ = 21705560352. Its totient is φ = 2067196032.

The previous prime is 8397984263. The next prime is 8397984271. The reversal of 8397984270 is 724897938.

It is a super-2 number, since 2×8397984270² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8397984270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8397984271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10766257 + ... + 10767036.

It is an arithmetic number, because the mean of its divisors is an integer number (678298761).

Almost surely, 2^8397984270 is an apocalyptic number.

8397984270 is an abundant number, since it is smaller than the sum of its proper divisors (13307576082).

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

8397984270 is a wasteful number, since it uses less digits than its factorization.

8397984270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21533316.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The square root of 8397984270 is about 91640.5165306263. The cubic root of 8397984270 is about 2032.6300989844.

The spelling of 8397984270 in words is "eight billion, three hundred ninety-seven million, nine hundred eighty-four thousand, two hundred seventy".