722347 has 4 divisors (see below), whose sum is σ = 764856. Its totient is φ = 679840.

The previous prime is 722341. The next prime is 722353. The reversal of 722347 is 743227.

722347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743227 = 439 ⋅1693.

It is an interprime number because it is at equal distance from previous prime (722341) and next prime (722353).

It is a cyclic number.

It is not a de Polignac number, because 722347 - 2¹¹ = 720299 is a prime.

It is a d-powerful number, because it can be written as 7 + 2 + 3¹¹ + 2¹⁹ + 4⁶ + 7⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722341) 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, 21229 + ... + 21262.

It is an arithmetic number, because the mean of its divisors is an integer number (191214).

2⁷²²³⁴⁷ is an apocalyptic number.

722347 is a deficient number, since it is larger than the sum of its proper divisors (42509).

722347 is a wasteful number, since it uses less digits than its factorization.

722347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42508.

The product of its digits is 2352, while the sum is 25.

The square root of 722347 is about 849.9099952348. The cubic root of 722347 is about 89.7253768678.

The spelling of 722347 in words is "seven hundred twenty-two thousand, three hundred forty-seven", and thus it is an iban number.