722486 has 16 divisors (see below), whose sum is σ = 1148928. Its totient is φ = 340200.

The previous prime is 722479. The next prime is 722489. The reversal of 722486 is 684227.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722489) 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, 2531 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (71808).

2⁷²²⁴⁸⁶ is an apocalyptic number.

722486 is a deficient number, since it is larger than the sum of its proper divisors (426442).

722486 is a wasteful number, since it uses less digits than its factorization.

722486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its digits is 5376, while the sum is 29.

The square root of 722486 is about 849.9917646660. The cubic root of 722486 is about 89.7311317324.

The spelling of 722486 in words is "seven hundred twenty-two thousand, four hundred eighty-six".