706532639 has 2 divisors, whose sum is σ = 706532640. Its totient is φ = 706532638.

The previous prime is 706532591. The next prime is 706532681. The reversal of 706532639 is 936235607.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706532639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 706532596 and 706532605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706522639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353266319 + 353266320.

It is an arithmetic number, because the mean of its divisors is an integer number (353266320).

Almost surely, 2^706532639 is an apocalyptic number.

706532639 is a deficient number, since it is larger than the sum of its proper divisors (1).

706532639 is an equidigital number, since it uses as much as digits as its factorization.

706532639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 706532639 is about 26580.6816880230. The cubic root of 706532639 is about 890.6575282409.

The spelling of 706532639 in words is "seven hundred six million, five hundred thirty-two thousand, six hundred thirty-nine".