705666877 has 4 divisors (see below), whose sum is σ = 705764320. Its totient is φ = 705569436.

The previous prime is 705666833. The next prime is 705666931. The reversal of 705666877 is 778666507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 705666877 - 2¹¹ = 705664829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705666817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36903 + ... + 52660.

It is an arithmetic number, because the mean of its divisors is an integer number (176441080).

Almost surely, 2^705666877 is an apocalyptic number.

It is an amenable number.

705666877 is a deficient number, since it is larger than the sum of its proper divisors (97443).

705666877 is an equidigital number, since it uses as much as digits as its factorization.

705666877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97442.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The square root of 705666877 is about 26564.3911467965. The cubic root of 705666877 is about 890.2935853390.

The spelling of 705666877 in words is "seven hundred five million, six hundred sixty-six thousand, eight hundred seventy-seven".