695840 has 24 divisors (see below), whose sum is σ = 1644300. Its totient is φ = 278272.

The previous prime is 695839. The next prime is 695843. The reversal of 695840 is 48596.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 99856 = 772^2 + 316^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 695797 and 695806.

It is not an unprimeable number, because it can be changed into a prime (695843) 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, 2015 + ... + 2334.

2⁶⁹⁵⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

695840 is an abundant number, since it is smaller than the sum of its proper divisors (948460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

695840 is a wasteful number, since it uses less digits than its factorization.

695840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4356 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 695840 is about 834.1702464126. The cubic root of 695840 is about 88.6141610359.

The spelling of 695840 in words is "six hundred ninety-five thousand, eight hundred forty".