695393789 has 4 divisors (see below), whose sum is σ = 736299324. Its totient is φ = 654488256.

The previous prime is 695393773. The next prime is 695393801. The reversal of 695393789 is 987393596.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 629508100 + 65885689 = 25090^2 + 8117^2 .

It is a cyclic number.

It is not a de Polignac number, because 695393789 - 2⁴ = 695393773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695393729) 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, 20452742 + ... + 20452775.

It is an arithmetic number, because the mean of its divisors is an integer number (184074831).

Almost surely, 2^695393789 is an apocalyptic number.

It is an amenable number.

695393789 is a deficient number, since it is larger than the sum of its proper divisors (40905535).

695393789 is a wasteful number, since it uses less digits than its factorization.

695393789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40905534.

The product of its digits is 11022480, while the sum is 59.

The square root of 695393789 is about 26370.3202293791. The cubic root of 695393789 is about 885.9521555591.

The spelling of 695393789 in words is "six hundred ninety-five million, three hundred ninety-three thousand, seven hundred eighty-nine".