722730071 has 16 divisors (see below), whose sum is σ = 832274688. Its totient is φ = 614779200.

The previous prime is 722730067. The next prime is 722730077. The reversal of 722730071 is 170037227.

It is not a de Polignac number, because 722730071 - 2² = 722730067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722730077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949331 + ... + 950091.

It is an arithmetic number, because the mean of its divisors is an integer number (52017168).

Almost surely, 2^722730071 is an apocalyptic number.

722730071 is a deficient number, since it is larger than the sum of its proper divisors (109544617).

722730071 is a wasteful number, since it uses less digits than its factorization.

722730071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622.

The product of its (nonzero) digits is 4116, while the sum is 29.

The square root of 722730071 is about 26883.6394671555. The cubic root of 722730071 is about 897.4123495070.

Adding to 722730071 its reverse (170037227), we get a palindrome (892767298).

The spelling of 722730071 in words is "seven hundred twenty-two million, seven hundred thirty thousand, seventy-one".