722120753 has 2 divisors, whose sum is σ = 722120754. Its totient is φ = 722120752.

The previous prime is 722120731. The next prime is 722120771. The reversal of 722120753 is 357021227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672727969 + 49392784 = 25937^2 + 7028^2 .

It is a cyclic number.

It is not a de Polignac number, because 722120753 - 2⁶ = 722120689 is a prime.

It is a super-3 number, since 3×722120753³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (722120723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361060376 + 361060377.

It is an arithmetic number, because the mean of its divisors is an integer number (361060377).

Almost surely, 2^722120753 is an apocalyptic number.

It is an amenable number.

722120753 is a deficient number, since it is larger than the sum of its proper divisors (1).

722120753 is an equidigital number, since it uses as much as digits as its factorization.

722120753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 722120753 is about 26872.3045718078. The cubic root of 722120753 is about 897.1600823238.

The spelling of 722120753 in words is "seven hundred twenty-two million, one hundred twenty thousand, seven hundred fifty-three".