700820017 has 2 divisors, whose sum is σ = 700820018. Its totient is φ = 700820016.

The previous prime is 700819993. The next prime is 700820027. The reversal of 700820017 is 710028007.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 696115456 + 4704561 = 26384^2 + 2169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700820017 is a prime.

It is a super-2 number, since 2×700820017² = 982297392455760578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 700819973 and 700820000.

It is not a weakly prime, because it can be changed into another prime (700820027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350410008 + 350410009.

It is an arithmetic number, because the mean of its divisors is an integer number (350410009).

Almost surely, 2^700820017 is an apocalyptic number.

It is an amenable number.

700820017 is a deficient number, since it is larger than the sum of its proper divisors (1).

700820017 is an equidigital number, since it uses as much as digits as its factorization.

700820017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 700820017 is about 26473.0054395038. The cubic root of 700820017 is about 888.2505790047.

The spelling of 700820017 in words is "seven hundred million, eight hundred twenty thousand, seventeen".