722946 has 24 divisors (see below), whose sum is σ = 1682640. Its totient is φ = 206472.

The previous prime is 722933. The next prime is 722963. The reversal of 722946 is 649227.

It is a happy number.

It is a d-powerful number, because it can be written as 7⁶ + 2⁵ + 9⁶ + 2⁹ + 4⁸ + 6⁵ .

It is an unprimeable number.

722946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (70110).

2⁷²²⁹⁴⁶ is an apocalyptic number.

722946 is an abundant number, since it is smaller than the sum of its proper divisors (959694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722946 is a wasteful number, since it uses less digits than its factorization.

722946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478 (or 2471 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 722946 is about 850.2623124660. The cubic root of 722946 is about 89.7501713464.

The spelling of 722946 in words is "seven hundred twenty-two thousand, nine hundred forty-six".