400617 has 12 divisors (see below), whose sum is σ = 661440. Its totient is φ = 228888.

The previous prime is 400607. The next prime is 400619. The reversal of 400617 is 716004.

It is not a de Polignac number, because 400617 - 2⁴ = 400601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400617.

It is not an unprimeable number, because it can be changed into a prime (400619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3117 + ... + 3242.

It is an arithmetic number, because the mean of its divisors is an integer number (55120).

2⁴⁰⁰⁶¹⁷ is an apocalyptic number.

It is an amenable number.

400617 is a deficient number, since it is larger than the sum of its proper divisors (260823).

400617 is a wasteful number, since it uses less digits than its factorization.

400617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372 (or 6369 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 400617 is about 632.9431254070. The cubic root of 400617 is about 73.7184946346.

The spelling of 400617 in words is "four hundred thousand, six hundred seventeen".