705256761 has 16 divisors (see below), whose sum is σ = 1047656448. Its totient is φ = 418333200.

The previous prime is 705256733. The next prime is 705256777. The reversal of 705256761 is 167652507.

It is not a de Polignac number, because 705256761 - 2⁵ = 705256729 is a prime.

It is a super-2 number, since 2×705256761² = 994774197872422242, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (705256661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225805 + ... + 228906.

It is an arithmetic number, because the mean of its divisors is an integer number (65478528).

Almost surely, 2^705256761 is an apocalyptic number.

It is an amenable number.

705256761 is a deficient number, since it is larger than the sum of its proper divisors (342399687).

705256761 is a wasteful number, since it uses less digits than its factorization.

705256761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454772.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 705256761 is about 26556.6707439016. The cubic root of 705256761 is about 890.1210797691.

The spelling of 705256761 in words is "seven hundred five million, two hundred fifty-six thousand, seven hundred sixty-one".