408979121 has 8 divisors (see below), whose sum is σ = 412224000. Its totient is φ = 405741600.

The previous prime is 408979079. The next prime is 408979127. The reversal of 408979121 is 121979804.

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 408979121 - 2¹⁸ = 408716977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (408979127) 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, 169280 + ... + 171678.

It is an arithmetic number, because the mean of its divisors is an integer number (51528000).

Almost surely, 2^408979121 is an apocalyptic number.

It is an amenable number.

408979121 is a deficient number, since it is larger than the sum of its proper divisors (3244879).

408979121 is a wasteful number, since it uses less digits than its factorization.

408979121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 408979121 is about 20223.2322095159. The cubic root of 408979121 is about 742.2787807754.

The spelling of 408979121 in words is "four hundred eight million, nine hundred seventy-nine thousand, one hundred twenty-one".