722615071 has 4 divisors (see below), whose sum is σ = 722815272. Its totient is φ = 722414872.

The previous prime is 722615027. The next prime is 722615077. The reversal of 722615071 is 170516227.

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

It is a cyclic number.

It is not a de Polignac number, because 722615071 - 2¹⁵ = 722582303 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 (722615077) 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, 94585 + ... + 101938.

It is an arithmetic number, because the mean of its divisors is an integer number (180703818).

Almost surely, 2^722615071 is an apocalyptic number.

722615071 is a deficient number, since it is larger than the sum of its proper divisors (200201).

722615071 is a wasteful number, since it uses less digits than its factorization.

722615071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200200.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 722615071 is about 26881.5005347544. The cubic root of 722615071 is about 897.3647485660.

The spelling of 722615071 in words is "seven hundred twenty-two million, six hundred fifteen thousand, seventy-one".