722760541 has 2 divisors, whose sum is σ = 722760542. Its totient is φ = 722760540.

The previous prime is 722760539. The next prime is 722760601. The reversal of 722760541 is 145067227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520296100 + 202464441 = 22810^2 + 14229^2 .

It is an emirp because it is prime and its reverse (145067227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722760541 - 2¹ = 722760539 is a prime.

It is a super-2 number, since 2×722760541² = 1044765599253225362, which contains 22 as substring.

Together with 722760539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 722760497 and 722760506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729760541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361380270 + 361380271.

It is an arithmetic number, because the mean of its divisors is an integer number (361380271).

Almost surely, 2^722760541 is an apocalyptic number.

It is an amenable number.

722760541 is a deficient number, since it is larger than the sum of its proper divisors (1).

722760541 is an equidigital number, since it uses as much as digits as its factorization.

722760541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 722760541 is about 26884.2061627268. The cubic root of 722760541 is about 897.4249608406.

The spelling of 722760541 in words is "seven hundred twenty-two million, seven hundred sixty thousand, five hundred forty-one".