705666469 has 2 divisors, whose sum is σ = 705666470. Its totient is φ = 705666468.

The previous prime is 705666463. The next prime is 705666503. The reversal of 705666469 is 964666507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 658538244 + 47128225 = 25662^2 + 6865^2 .

It is a cyclic number.

It is not a de Polignac number, because 705666469 - 2¹³ = 705658277 is a prime.

It is a super-2 number, since 2×705666469² = 995930330941855922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705666463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352833234 + 352833235.

It is an arithmetic number, because the mean of its divisors is an integer number (352833235).

Almost surely, 2^705666469 is an apocalyptic number.

It is an amenable number.

705666469 is a deficient number, since it is larger than the sum of its proper divisors (1).

705666469 is an equidigital number, since it uses as much as digits as its factorization.

705666469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 705666469 is about 26564.3834673421. The cubic root of 705666469 is about 890.2934137567.

The spelling of 705666469 in words is "seven hundred five million, six hundred sixty-six thousand, four hundred sixty-nine".