705480761 has 2 divisors, whose sum is σ = 705480762. Its totient is φ = 705480760.

The previous prime is 705480757. The next prime is 705480791. The reversal of 705480761 is 167084507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494795536 + 210685225 = 22244^2 + 14515^2 .

It is a cyclic number.

It is not a de Polignac number, because 705480761 - 2² = 705480757 is a prime.

It is a super-2 number, since 2×705480761² = 995406208282278242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (705480731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352740380 + 352740381.

It is an arithmetic number, because the mean of its divisors is an integer number (352740381).

Almost surely, 2^705480761 is an apocalyptic number.

It is an amenable number.

705480761 is a deficient number, since it is larger than the sum of its proper divisors (1).

705480761 is an equidigital number, since it uses as much as digits as its factorization.

705480761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 705480761 is about 26560.8878051921. The cubic root of 705480761 is about 890.2153083428.

The spelling of 705480761 in words is "seven hundred five million, four hundred eighty thousand, seven hundred sixty-one".