722348837 has 6 divisors (see below), whose sum is σ = 840283398. Its totient is φ = 619156104.

The previous prime is 722348807. The next prime is 722348843. The reversal of 722348837 is 738843227.

It can be written as a sum of positive squares in only one way, i.e., 515017636 + 207331201 = 22694^2 + 14399^2 .

It is not a de Polignac number, because 722348837 - 2²⁶ = 655239973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722348807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7370858 + ... + 7370955.

It is an arithmetic number, because the mean of its divisors is an integer number (140047233).

Almost surely, 2^722348837 is an apocalyptic number.

It is an amenable number.

722348837 is a deficient number, since it is larger than the sum of its proper divisors (117934561).

722348837 is a wasteful number, since it uses less digits than its factorization.

722348837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14741827 (or 14741820 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 722348837 is about 26876.5480856452. The cubic root of 722348837 is about 897.2545292793.

The spelling of 722348837 in words is "seven hundred twenty-two million, three hundred forty-eight thousand, eight hundred thirty-seven".