705989393 has 4 divisors (see below), whose sum is σ = 736684608. Its totient is φ = 675294180.

The previous prime is 705989387. The next prime is 705989399. The reversal of 705989393 is 393989507.

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 an interprime number because it is at equal distance from previous prime (705989387) and next prime (705989399).

It is a cyclic number.

It is not a de Polignac number, because 705989393 - 2⁶ = 705989329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705989399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15347573 + ... + 15347618.

It is an arithmetic number, because the mean of its divisors is an integer number (184171152).

Almost surely, 2^705989393 is an apocalyptic number.

It is an amenable number.

705989393 is a deficient number, since it is larger than the sum of its proper divisors (30695215).

705989393 is a wasteful number, since it uses less digits than its factorization.

705989393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30695214.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The square root of 705989393 is about 26570.4609105676. The cubic root of 705989393 is about 890.4291971047.

The spelling of 705989393 in words is "seven hundred five million, nine hundred eighty-nine thousand, three hundred ninety-three".