400697 has 8 divisors (see below), whose sum is σ = 444000. Its totient is φ = 358560.

The previous prime is 400681. The next prime is 400703. The reversal of 400697 is 796004.

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

It is a cyclic number.

It is not a de Polignac number, because 400697 - 2⁴ = 400681 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 400697.

It is not an unprimeable number, because it can be changed into a prime (400607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554 + ... + 1052.

It is an arithmetic number, because the mean of its divisors is an integer number (55500).

2⁴⁰⁰⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

400697 is a deficient number, since it is larger than the sum of its proper divisors (43303).

400697 is a wasteful number, since it uses less digits than its factorization.

400697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 400697 is about 633.0063190838. The cubic root of 400697 is about 73.7234013053.

The spelling of 400697 in words is "four hundred thousand, six hundred ninety-seven".