707648489 has 2 divisors, whose sum is σ = 707648490. Its totient is φ = 707648488.

The previous prime is 707648449. The next prime is 707648503. The reversal of 707648489 is 984846707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558613225 + 149035264 = 23635^2 + 12208^2 .

It is a cyclic number.

It is not a de Polignac number, because 707648489 - 2²⁴ = 690871273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 707648489.

It is not a weakly prime, because it can be changed into another prime (707648449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353824244 + 353824245.

It is an arithmetic number, because the mean of its divisors is an integer number (353824245).

Almost surely, 2^707648489 is an apocalyptic number.

It is an amenable number.

707648489 is a deficient number, since it is larger than the sum of its proper divisors (1).

707648489 is an equidigital number, since it uses as much as digits as its factorization.

707648489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 707648489 is about 26601.6632750661. The cubic root of 707648489 is about 891.1261630948.

The spelling of 707648489 in words is "seven hundred seven million, six hundred forty-eight thousand, four hundred eighty-nine".