720903532 has 12 divisors (see below), whose sum is σ = 1264006296. Its totient is φ = 359758880.

The previous prime is 720903499. The next prime is 720903539. The reversal of 720903532 is 235309027.

It is a junction number, because it is equal to n+sod(n) for n = 720903494 and 720903503.

It is not an unprimeable number, because it can be changed into a prime (720903539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170878 + ... + 175045.

It is an arithmetic number, because the mean of its divisors is an integer number (105333858).

Almost surely, 2^720903532 is an apocalyptic number.

It is an amenable number.

720903532 is a deficient number, since it is larger than the sum of its proper divisors (543102764).

720903532 is a wasteful number, since it uses less digits than its factorization.

720903532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346448 (or 346446 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 720903532 is about 26849.6467760751. The cubic root of 720903532 is about 896.6557085735.

The spelling of 720903532 in words is "seven hundred twenty million, nine hundred three thousand, five hundred thirty-two".