700656221 has 2 divisors, whose sum is σ = 700656222. Its totient is φ = 700656220.

The previous prime is 700656197. The next prime is 700656283. The reversal of 700656221 is 122656007.

700656221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 575328196 + 125328025 = 23986^2 + 11195^2 .

It is a cyclic number.

It is not a de Polignac number, because 700656221 - 2¹⁸ = 700394077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (700650221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350328110 + 350328111.

It is an arithmetic number, because the mean of its divisors is an integer number (350328111).

Almost surely, 2^700656221 is an apocalyptic number.

It is an amenable number.

700656221 is a deficient number, since it is larger than the sum of its proper divisors (1).

700656221 is an equidigital number, since it uses as much as digits as its factorization.

700656221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 700656221 is about 26469.9116167773. The cubic root of 700656221 is about 888.1813728250.

The spelling of 700656221 in words is "seven hundred million, six hundred fifty-six thousand, two hundred twenty-one".