722714081 has 8 divisors (see below), whose sum is σ = 785909160. Its totient is φ = 661817088.

The previous prime is 722714009. The next prime is 722714101. The reversal of 722714081 is 180417227.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 257923600 + 464790481 = 16060^2 + 21559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 722714081 - 2¹⁸ = 722451937 is a prime.

It is a super-2 number, since 2×722714081² = 1044631285751349122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (722716081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573866 + ... + 575123.

It is an arithmetic number, because the mean of its divisors is an integer number (98238645).

Almost surely, 2^722714081 is an apocalyptic number.

It is an amenable number.

722714081 is a deficient number, since it is larger than the sum of its proper divisors (63195079).

722714081 is a wasteful number, since it uses less digits than its factorization.

722714081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149043.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 722714081 is about 26883.3420727409. The cubic root of 722714081 is about 897.4057312089.

The spelling of 722714081 in words is "seven hundred twenty-two million, seven hundred fourteen thousand, eighty-one".