700820089 has 2 divisors, whose sum is σ = 700820090. Its totient is φ = 700820088.

The previous prime is 700820083. The next prime is 700820117. The reversal of 700820089 is 980028007.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675740025 + 25080064 = 25995^2 + 5008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700820089 is a prime.

It is a super-2 number, since 2×700820089² = 982297594291935842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (700820083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350410044 + 350410045.

It is an arithmetic number, because the mean of its divisors is an integer number (350410045).

Almost surely, 2^700820089 is an apocalyptic number.

It is an amenable number.

700820089 is a deficient number, since it is larger than the sum of its proper divisors (1).

700820089 is an equidigital number, since it uses as much as digits as its factorization.

700820089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 700820089 is about 26473.0067993796. The cubic root of 700820089 is about 888.2506094234.

The spelling of 700820089 in words is "seven hundred million, eight hundred twenty thousand, eighty-nine".