705378077 has 4 divisors (see below), whose sum is σ = 715906176. Its totient is φ = 694849980.

The previous prime is 705378071. The next prime is 705378109. The reversal of 705378077 is 770873507.

705378077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 770873507 = 619 ⋅1245353.

It is a cyclic number.

It is not a de Polignac number, because 705378077 - 2⁶ = 705378013 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 (705378071) 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, 5263949 + ... + 5264082.

It is an arithmetic number, because the mean of its divisors is an integer number (178976544).

Almost surely, 2^705378077 is an apocalyptic number.

It is an amenable number.

705378077 is a deficient number, since it is larger than the sum of its proper divisors (10528099).

705378077 is a wasteful number, since it uses less digits than its factorization.

705378077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528098.

The product of its (nonzero) digits is 288120, while the sum is 44.

The square root of 705378077 is about 26558.9547422334. The cubic root of 705378077 is about 890.1721154314.

The spelling of 705378077 in words is "seven hundred five million, three hundred seventy-eight thousand, seventy-seven".