722086900 has 36 divisors (see below), whose sum is σ = 1659104748. Its totient is φ = 271843840.

The previous prime is 722086891. The next prime is 722086907. The reversal of 722086900 is 9680227.

722086900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 19412836 + 702674064 = 4406^2 + 26508^2 .

It is a super-2 number, since 2×722086900² = 1042818982303220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722086907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210679 + ... + 214078.

It is an arithmetic number, because the mean of its divisors is an integer number (46086243).

Almost surely, 2^722086900 is an apocalyptic number.

It is an amenable number.

722086900 is an abundant number, since it is smaller than the sum of its proper divisors (937017848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722086900 is a wasteful number, since it uses less digits than its factorization.

722086900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424788 (or 424781 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 722086900 is about 26871.6746779950. The cubic root of 722086900 is about 897.1460624918.

The spelling of 722086900 in words is "seven hundred twenty-two million, eighty-six thousand, nine hundred".