700247861 has 2 divisors, whose sum is σ = 700247862. Its totient is φ = 700247860.

The previous prime is 700247803. The next prime is 700247881. The reversal of 700247861 is 168742007.

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., 396408100 + 303839761 = 19910^2 + 17431^2 .

It is a cyclic number.

It is not a de Polignac number, because 700247861 - 2⁶ = 700247797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (700247881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350123930 + 350123931.

It is an arithmetic number, because the mean of its divisors is an integer number (350123931).

Almost surely, 2^700247861 is an apocalyptic number.

It is an amenable number.

700247861 is a deficient number, since it is larger than the sum of its proper divisors (1).

700247861 is an equidigital number, since it uses as much as digits as its factorization.

700247861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 700247861 is about 26462.1968286837. The cubic root of 700247861 is about 888.0087878395.

Adding to 700247861 its reverse (168742007), we get a palindrome (868989868).

The spelling of 700247861 in words is "seven hundred million, two hundred forty-seven thousand, eight hundred sixty-one".