8212697320 has 64 divisors (see below), whose sum is σ = 19108224000. Its totient is φ = 3173514240.

The previous prime is 8212697291. The next prime is 8212697321. The reversal of 8212697320 is 237962128.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (8212697321) 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, 737232 + ... + 748288.

It is an arithmetic number, because the mean of its divisors is an integer number (298566000).

Almost surely, 2^8212697320 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 8212697320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9554112000).

8212697320 is an abundant number, since it is smaller than the sum of its proper divisors (10895526680).

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

8212697320 is a wasteful number, since it uses less digits than its factorization.

8212697320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11698 (or 11694 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 8212697320 is about 90623.9334833795. The cubic root of 8212697320 is about 2017.5699727030.

The spelling of 8212697320 in words is "eight billion, two hundred twelve million, six hundred ninety-seven thousand, three hundred twenty".