401695 has 16 divisors (see below), whose sum is σ = 576000. Its totient is φ = 262944.

The previous prime is 401689. The next prime is 401707. The reversal of 401695 is 596104.

401695 = T₁₈₅ + T₁₈₆ + ... + T₂₀₅.

401695 = 70² + 71² + ... + 115².

It is a cyclic number.

It is not a de Polignac number, because 401695 - 2⁷ = 401567 is a prime.

It is a super-2 number, since 2×401695² = 322717746050, which contains 22 as substring.

401695 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (36000).

2⁴⁰¹⁶⁹⁵ is an apocalyptic number.

401695 is a deficient number, since it is larger than the sum of its proper divisors (174305).

401695 is a wasteful number, since it uses less digits than its factorization.

401695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 401695 is about 633.7941306134. The cubic root of 401695 is about 73.7845572034.

Adding to 401695 its reverse (596104), we get a palindrome (997799).

The spelling of 401695 in words is "four hundred one thousand, six hundred ninety-five".