722601505 has 8 divisors (see below), whose sum is σ = 867267072. Its totient is φ = 577984368.

The previous prime is 722601493. The next prime is 722601533. The reversal of 722601505 is 505106227.

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 722601505 - 2¹⁹ = 722077217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46674 + ... + 60196.

It is an arithmetic number, because the mean of its divisors is an integer number (108408384).

Almost surely, 2^722601505 is an apocalyptic number.

It is an amenable number.

722601505 is a deficient number, since it is larger than the sum of its proper divisors (144665567).

722601505 is a wasteful number, since it uses less digits than its factorization.

722601505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24215.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 722601505 is about 26881.2482039060. The cubic root of 722601505 is about 897.3591329776.

The spelling of 722601505 in words is "seven hundred twenty-two million, six hundred one thousand, five hundred five".