722898 has 32 divisors (see below), whose sum is σ = 1753920. Its totient is φ = 218880.

The previous prime is 722881. The next prime is 722899. The reversal of 722898 is 898227.

722898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×722898³ = 1133319403473644376, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722899) by changing a digit.

722898 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15 + ... + 1202.

It is an arithmetic number, because the mean of its divisors is an integer number (54810).

2⁷²²⁸⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (876960).

722898 is an abundant number, since it is smaller than the sum of its proper divisors (1031022).

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

722898 is a wasteful number, since it uses less digits than its factorization.

722898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1233 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 722898 is about 850.2340854141. The cubic root of 722898 is about 89.7481849815.

The spelling of 722898 in words is "seven hundred twenty-two thousand, eight hundred ninety-eight".