722427 has 8 divisors (see below), whose sum is σ = 968016. Its totient is φ = 479232.

The previous prime is 722417. The next prime is 722431. The reversal of 722427 is 724227.

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

It is not a de Polignac number, because 722427 - 2⁴ = 722411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722397 and 722406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722427.

It is not an unprimeable number, because it can be changed into a prime (722417) 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, 303 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (121002).

2⁷²²⁴²⁷ is an apocalyptic number.

722427 is a deficient number, since it is larger than the sum of its proper divisors (245589).

722427 is a wasteful number, since it uses less digits than its factorization.

722427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197.

The product of its digits is 1568, while the sum is 24.

The square root of 722427 is about 849.9570577388. The cubic root of 722427 is about 89.7286891103.

The spelling of 722427 in words is "seven hundred twenty-two thousand, four hundred twenty-seven", and thus it is an iban number.