700643 has 2 divisors, whose sum is σ = 700644. Its totient is φ = 700642.

The previous prime is 700639. The next prime is 700673. The reversal of 700643 is 346007.

700643 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 is a cyclic number.

It is not a de Polignac number, because 700643 - 2² = 700639 is a prime.

It is a super-2 number, since 2×700643² = 981801226898, which contains 22 as substring.

It is a Sophie Germain prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 700643.

It is not a weakly prime, because it can be changed into another prime (700633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350321 + 350322.

It is an arithmetic number, because the mean of its divisors is an integer number (350322).

2⁷⁰⁰⁶⁴³ is an apocalyptic number.

700643 is a deficient number, since it is larger than the sum of its proper divisors (1).

700643 is an equidigital number, since it uses as much as digits as its factorization.

700643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 700643 is about 837.0442043285. The cubic root of 700643 is about 88.8175786291.

The spelling of 700643 in words is "seven hundred thousand, six hundred forty-three".