720883100 has 72 divisors (see below), whose sum is σ = 1824362400. Its totient is φ = 247148160.

The previous prime is 720883091. The next prime is 720883117. The reversal of 720883100 is 1388027.

It is a super-2 number, since 2×720883100² = 1039344887731220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23792 + ... + 44808.

Almost surely, 2^720883100 is an apocalyptic number.

720883100 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720883100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (912181200).

720883100 is an abundant number, since it is smaller than the sum of its proper divisors (1103479300).

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

720883100 is a wasteful number, since it uses less digits than its factorization.

720883100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21052 (or 21031 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 720883100 is about 26849.2662842023. The cubic root of 720883100 is about 896.6472374251.

The spelling of 720883100 in words is "seven hundred twenty million, eight hundred eighty-three thousand, one hundred".