472721100 has 72 divisors (see below), whose sum is σ = 1375536960. Its totient is φ = 125340480.

The previous prime is 472721089. The next prime is 472721111. The reversal of 472721100 is 1127274.

It is an interprime number because it is at equal distance from previous prime (472721089) and next prime (472721111).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49299 + ... + 58101.

It is an arithmetic number, because the mean of its divisors is an integer number (19104680).

Almost surely, 2^472721100 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 472721100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687768480).

472721100 is an abundant number, since it is smaller than the sum of its proper divisors (902815860).

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

472721100 is a wasteful number, since it uses less digits than its factorization.

472721100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999 (or 8992 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 472721100 is about 21742.1503076398. The cubic root of 472721100 is about 778.9955842109.

Adding to 472721100 its reverse (1127274), we get a palindrome (473848374).

The spelling of 472721100 in words is "four hundred seventy-two million, seven hundred twenty-one thousand, one hundred".