409497 has 8 divisors (see below), whose sum is σ = 595680. Its totient is φ = 248160.

The previous prime is 409483. The next prime is 409499. The reversal of 409497 is 794904.

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

It is not a de Polignac number, because 409497 - 2⁶ = 409433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 12409 = 409497 / (4 + 0 + 9 + 4 + 9 + 7).

It is not an unprimeable number, because it can be changed into a prime (409499) 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, 6172 + ... + 6237.

It is an arithmetic number, because the mean of its divisors is an integer number (74460).

2⁴⁰⁹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

409497 is a deficient number, since it is larger than the sum of its proper divisors (186183).

409497 is a wasteful number, since it uses less digits than its factorization.

409497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12423.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 409497 is about 639.9195261906. The cubic root of 409497 is about 74.2591957684.

The spelling of 409497 in words is "four hundred nine thousand, four hundred ninety-seven".