8217920748 has 48 divisors (see below), whose sum is σ = 19762413440. Its totient is φ = 2656329984.

The previous prime is 8217920743. The next prime is 8217920749. The reversal of 8217920748 is 8470297128.

It is a junction number, because it is equal to n+sod(n) for n = 8217920697 and 8217920706.

It is not an unprimeable number, because it can be changed into a prime (8217920743) 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, 14436 + ... + 129012.

Almost surely, 2^8217920748 is an apocalyptic number.

It is an amenable number.

8217920748 is an abundant number, since it is smaller than the sum of its proper divisors (11544492692).

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

8217920748 is a wasteful number, since it uses less digits than its factorization.

8217920748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114766 (or 114764 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 8217920748 is about 90652.7481547030. The cubic root of 8217920748 is about 2017.9976193746.

The spelling of 8217920748 in words is "eight billion, two hundred seventeen million, nine hundred twenty thousand, seven hundred forty-eight".