722530678 has 8 divisors (see below), whose sum is σ = 1087709472. Its totient is φ = 359960856.

The previous prime is 722530673. The next prime is 722530693. The reversal of 722530678 is 876035227.

722530678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×722530678² = 1044101161302279368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 722530678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722530673) 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, 651550 + ... + 652657.

It is an arithmetic number, because the mean of its divisors is an integer number (135963684).

Almost surely, 2^722530678 is an apocalyptic number.

722530678 is a deficient number, since it is larger than the sum of its proper divisors (365178794).

722530678 is a wasteful number, since it uses less digits than its factorization.

722530678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304486.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 722530678 is about 26879.9307662799. The cubic root of 722530678 is about 897.3298132988.

The spelling of 722530678 in words is "seven hundred twenty-two million, five hundred thirty thousand, six hundred seventy-eight".