722348069 has 4 divisors (see below), whose sum is σ = 723683820. Its totient is φ = 721012320.

The previous prime is 722348063. The next prime is 722348083. The reversal of 722348069 is 960843227.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 514699969 + 207648100 = 22687^2 + 14410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722348069 is a prime.

It is a super-2 number, since 2×722348069² = 1043573465576057522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722348063) 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, 667064 + ... + 668145.

It is an arithmetic number, because the mean of its divisors is an integer number (180920955).

Almost surely, 2^722348069 is an apocalyptic number.

It is an amenable number.

722348069 is a deficient number, since it is larger than the sum of its proper divisors (1335751).

722348069 is a wasteful number, since it uses less digits than its factorization.

722348069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335750.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 722348069 is about 26876.5337980923. The cubic root of 722348069 is about 897.2542112927.

The spelling of 722348069 in words is "seven hundred twenty-two million, three hundred forty-eight thousand, sixty-nine".