8497722100 has 144 divisors (see below), whose sum is σ = 22248576000. Its totient is φ = 2812709760.

The previous prime is 8497722097. The next prime is 8497722133. The reversal of 8497722100 is 12277948.

It is a super-2 number, since 2×8497722100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 990429 + ... + 998971.

It is an arithmetic number, because the mean of its divisors is an integer number (154504000).

Almost surely, 2^8497722100 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 8497722100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11124288000).

8497722100 is an abundant number, since it is smaller than the sum of its proper divisors (13750853900).

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

8497722100 is a wasteful number, since it uses less digits than its factorization.

8497722100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8607 (or 8586 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 8497722100 is about 92183.0900979133. The cubic root of 8497722100 is about 2040.6452287463.

The spelling of 8497722100 in words is "eight billion, four hundred ninety-seven million, seven hundred twenty-two thousand, one hundred".