720725403 has 8 divisors (see below), whose sum is σ = 964707408. Its totient is φ = 478613504.

The previous prime is 720725393. The next prime is 720725419. The reversal of 720725403 is 304527027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 720725403 - 2⁶ = 720725339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720725483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466626 + ... + 468167.

It is an arithmetic number, because the mean of its divisors is an integer number (120588426).

Almost surely, 2^720725403 is an apocalyptic number.

720725403 is a deficient number, since it is larger than the sum of its proper divisors (243982005).

720725403 is a wasteful number, since it uses less digits than its factorization.

720725403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935053.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 720725403 is about 26846.3294139068. The cubic root of 720725403 is about 896.5818505446.

The spelling of 720725403 in words is "seven hundred twenty million, seven hundred twenty-five thousand, four hundred three".