400695 has 8 divisors (see below), whose sum is σ = 641136. Its totient is φ = 213696.

The previous prime is 400681. The next prime is 400703. The reversal of 400695 is 596004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400695 - 2⁴ = 400679 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 13342 + ... + 13371.

It is an arithmetic number, because the mean of its divisors is an integer number (80142).

2⁴⁰⁰⁶⁹⁵ is an apocalyptic number.

400695 is a deficient number, since it is larger than the sum of its proper divisors (240441).

400695 is a wasteful number, since it uses less digits than its factorization.

400695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26721.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 400695 is about 633.0047393188. The cubic root of 400695 is about 73.7232786465.

Adding to 400695 its reverse (596004), we get a palindrome (996699).

The spelling of 400695 in words is "four hundred thousand, six hundred ninety-five".