408697 has 8 divisors (see below), whose sum is σ = 448200. Its totient is φ = 370944.

The previous prime is 408691. The next prime is 408701. The reversal of 408697 is 796804.

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 281961 = 356^2 + 531^2 .

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 408697 - 2³ = 408689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408691) by changing a digit.

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, 79 + ... + 907.

It is an arithmetic number, because the mean of its divisors is an integer number (56025).

2⁴⁰⁸⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

408697 is a deficient number, since it is larger than the sum of its proper divisors (39503).

408697 is a wasteful number, since it uses less digits than its factorization.

408697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 408697 is about 639.2941420035. The cubic root of 408697 is about 74.2108062523.

The spelling of 408697 in words is "four hundred eight thousand, six hundred ninety-seven".