409105797 has 8 divisors (see below), whose sum is σ = 552946944. Its totient is φ = 269000928.

The previous prime is 409105787. The next prime is 409105843. The reversal of 409105797 is 797501904.

It is a happy number.

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

It is not a de Polignac number, because 409105797 - 2²³ = 400717189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409105717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933813 + ... + 934250.

It is an arithmetic number, because the mean of its divisors is an integer number (69118368).

Almost surely, 2^409105797 is an apocalyptic number.

It is an amenable number.

409105797 is a deficient number, since it is larger than the sum of its proper divisors (143841147).

409105797 is a wasteful number, since it uses less digits than its factorization.

409105797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868139.

The product of its (nonzero) digits is 79380, while the sum is 42.

The square root of 409105797 is about 20226.3639095118. The cubic root of 409105797 is about 742.3554099524.

The spelling of 409105797 in words is "four hundred nine million, one hundred five thousand, seven hundred ninety-seven".