695389 has 2 divisors, whose sum is σ = 695390. Its totient is φ = 695388.

The previous prime is 695377. The next prime is 695407. The reversal of 695389 is 983596.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 71289 = 790^2 + 267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-695389 is a prime.

It is a super-2 number, since 2×695389² = 967131722642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (695309) 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 as a sum of consecutive naturals, namely, 347694 + 347695.

It is an arithmetic number, because the mean of its divisors is an integer number (347695).

2⁶⁹⁵³⁸⁹ is an apocalyptic number.

It is an amenable number.

695389 is a deficient number, since it is larger than the sum of its proper divisors (1).

695389 is an equidigital number, since it uses as much as digits as its factorization.

695389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 695389 is about 833.8998740856. The cubic root of 695389 is about 88.5950121779.

The spelling of 695389 in words is "six hundred ninety-five thousand, three hundred eighty-nine".