722801 has 4 divisors (see below), whose sum is σ = 725232. Its totient is φ = 720372.

The previous prime is 722797. The next prime is 722807. The reversal of 722801 is 108227.

722801 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108227 = 7 ⋅15461.

It is not a de Polignac number, because 722801 - 2² = 722797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722807) 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, 695 + ... + 1388.

It is an arithmetic number, because the mean of its divisors is an integer number (181308).

2⁷²²⁸⁰¹ is an apocalyptic number.

It is an amenable number.

722801 is a deficient number, since it is larger than the sum of its proper divisors (2431).

722801 is a wasteful number, since it uses less digits than its factorization.

722801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 722801 is about 850.1770403863. The cubic root of 722801 is about 89.7441706008.

The spelling of 722801 in words is "seven hundred twenty-two thousand, eight hundred one".