730822 has 4 divisors (see below), whose sum is σ = 1096236. Its totient is φ = 365410.

The previous prime is 730819. The next prime is 730823. The reversal of 730822 is 228037.

It is a happy number.

730822 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: 228037 = 163 ⋅1399.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 730793 and 730802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182704 + ... + 182707.

It is an arithmetic number, because the mean of its divisors is an integer number (274059).

2⁷³⁰⁸²² is an apocalyptic number.

730822 is a deficient number, since it is larger than the sum of its proper divisors (365414).

730822 is a wasteful number, since it uses less digits than its factorization.

730822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365413.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 730822 is about 854.8812783071. The cubic root of 730822 is about 90.0749170447.

Adding to 730822 its reverse (228037), we get a palindrome (958859).

It can be divided in two parts, 730 and 822, that multiplied together give a triangular number (600060 = T₁₀₉₅).

The spelling of 730822 in words is "seven hundred thirty thousand, eight hundred twenty-two".