705428959 has 4 divisors (see below), whose sum is σ = 705488616. Its totient is φ = 705369304.

The previous prime is 705428953. The next prime is 705428981. The reversal of 705428959 is 959824507.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 959824507 = 8573 ⋅111959.

It is a cyclic number.

It is not a de Polignac number, because 705428959 - 2³ = 705428951 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 (705428951) 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, 5449 + ... + 37954.

It is an arithmetic number, because the mean of its divisors is an integer number (176372154).

Almost surely, 2^705428959 is an apocalyptic number.

705428959 is a deficient number, since it is larger than the sum of its proper divisors (59657).

705428959 is a wasteful number, since it uses less digits than its factorization.

705428959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59656.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 705428959 is about 26559.9126316334. The cubic root of 705428959 is about 890.1935189170.

The spelling of 705428959 in words is "seven hundred five million, four hundred twenty-eight thousand, nine hundred fifty-nine".