705679501 has 2 divisors, whose sum is σ = 705679502. Its totient is φ = 705679500.

The previous prime is 705679489. The next prime is 705679517. The reversal of 705679501 is 105976507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 661775625 + 43903876 = 25725^2 + 6626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705679501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705679001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352839750 + 352839751.

It is an arithmetic number, because the mean of its divisors is an integer number (352839751).

Almost surely, 2^705679501 is an apocalyptic number.

It is an amenable number.

705679501 is a deficient number, since it is larger than the sum of its proper divisors (1).

705679501 is an equidigital number, since it uses as much as digits as its factorization.

705679501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 705679501 is about 26564.6287570521. The cubic root of 705679501 is about 890.2988942648.

The spelling of 705679501 in words is "seven hundred five million, six hundred seventy-nine thousand, five hundred one".