695531 has 4 divisors (see below), whose sum is σ = 697200. Its totient is φ = 693864.

The previous prime is 695509. The next prime is 695561. The reversal of 695531 is 135596.

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.

It is a cyclic number.

It is not a de Polignac number, because 695531 - 2⁶ = 695467 is a prime.

It is a super-2 number, since 2×695531² = 967526743922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 695494 and 695503.

It is not an unprimeable number, because it can be changed into a prime (695561) 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, 410 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (174300).

2⁶⁹⁵⁵³¹ is an apocalyptic number.

695531 is a deficient number, since it is larger than the sum of its proper divisors (1669).

695531 is an equidigital number, since it uses as much as digits as its factorization.

695531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668.

The product of its digits is 4050, while the sum is 29.

The square root of 695531 is about 833.9850118557. The cubic root of 695531 is about 88.6010422011.

The spelling of 695531 in words is "six hundred ninety-five thousand, five hundred thirty-one".