706474721 has 2 divisors, whose sum is σ = 706474722. Its totient is φ = 706474720.

The previous prime is 706474697. The next prime is 706474793. The reversal of 706474721 is 127474607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 613255696 + 93219025 = 24764^2 + 9655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706474721 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (706471721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353237360 + 353237361.

It is an arithmetic number, because the mean of its divisors is an integer number (353237361).

Almost surely, 2^706474721 is an apocalyptic number.

It is an amenable number.

706474721 is a deficient number, since it is larger than the sum of its proper divisors (1).

706474721 is an equidigital number, since it uses as much as digits as its factorization.

706474721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 706474721 is about 26579.5921902500. The cubic root of 706474721 is about 890.6331903644.

The spelling of 706474721 in words is "seven hundred six million, four hundred seventy-four thousand, seven hundred twenty-one".