720897268 has 48 divisors (see below), whose sum is σ = 1578204544. Its totient is φ = 280506240.

The previous prime is 720897263. The next prime is 720897271. The reversal of 720897268 is 862798027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720897263) 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, 5971 + ... + 38437.

Almost surely, 2^720897268 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 720897268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789102272).

720897268 is an abundant number, since it is smaller than the sum of its proper divisors (857307276).

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

720897268 is a wasteful number, since it uses less digits than its factorization.

720897268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32552 (or 32550 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 720897268 is about 26849.5301262424. The cubic root of 720897268 is about 896.6531115235.

The spelling of 720897268 in words is "seven hundred twenty million, eight hundred ninety-seven thousand, two hundred sixty-eight".