700700009 has 2 divisors, whose sum is σ = 700700010. Its totient is φ = 700700008.

The previous prime is 700699981. The next prime is 700700023. The reversal of 700700009 is 900007007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607770409 + 92929600 = 24653^2 + 9640^2 .

It is an emirp because it is prime and its reverse (900007007) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700700009 is a prime.

It is a super-2 number, since 2×700700009² = 981961005225200162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (700700809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350350004 + 350350005.

It is an arithmetic number, because the mean of its divisors is an integer number (350350005).

Almost surely, 2^700700009 is an apocalyptic number.

It is an amenable number.

700700009 is a deficient number, since it is larger than the sum of its proper divisors (1).

700700009 is an equidigital number, since it uses as much as digits as its factorization.

700700009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 700700009 is about 26470.7387316637. The cubic root of 700700009 is about 888.1998749447.

The spelling of 700700009 in words is "seven hundred million, seven hundred thousand, nine".