705705487 has 2 divisors, whose sum is σ = 705705488. Its totient is φ = 705705486.

The previous prime is 705705461. The next prime is 705705493. The reversal of 705705487 is 784507507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 705705487 - 2¹⁵ = 705672719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705705457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352852743 + 352852744.

It is an arithmetic number, because the mean of its divisors is an integer number (352852744).

Almost surely, 2^705705487 is an apocalyptic number.

705705487 is a deficient number, since it is larger than the sum of its proper divisors (1).

705705487 is an equidigital number, since it uses as much as digits as its factorization.

705705487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 705705487 is about 26565.1178615868. The cubic root of 705705487 is about 890.3098222772.

The spelling of 705705487 in words is "seven hundred five million, seven hundred five thousand, four hundred eighty-seven".