695599 has 2 divisors, whose sum is σ = 695600. Its totient is φ = 695598.

The previous prime is 695593. The next prime is 695603. The reversal of 695599 is 995596.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 695599 - 2⁵ = 695567 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 695599.

It is not a weakly prime, because it can be changed into another prime (695593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347799 + 347800.

It is an arithmetic number, because the mean of its divisors is an integer number (347800).

2⁶⁹⁵⁵⁹⁹ is an apocalyptic number.

695599 is a deficient number, since it is larger than the sum of its proper divisors (1).

695599 is an equidigital number, since it uses as much as digits as its factorization.

695599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 43.

The square root of 695599 is about 834.0257789781. The cubic root of 695599 is about 88.6039295273.

Subtracting from 695599 its sum of digits (43), we obtain a square (695556 = 834²).

The spelling of 695599 in words is "six hundred ninety-five thousand, five hundred ninety-nine".