720417453 has 12 divisors (see below), whose sum is σ = 1117382400. Its totient is φ = 411667032.

The previous prime is 720417443. The next prime is 720417493. The reversal of 720417453 is 354714027.

It is not a de Polignac number, because 720417453 - 2⁵ = 720417421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720417413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2450253 + ... + 2450546.

It is an arithmetic number, because the mean of its divisors is an integer number (93115200).

Almost surely, 2^720417453 is an apocalyptic number.

It is an amenable number.

720417453 is a deficient number, since it is larger than the sum of its proper divisors (396964947).

720417453 is a wasteful number, since it uses less digits than its factorization.

720417453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900816 (or 4900809 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 720417453 is about 26840.5933801770. The cubic root of 720417453 is about 896.4541358314.

The spelling of 720417453 in words is "seven hundred twenty million, four hundred seventeen thousand, four hundred fifty-three".