408923117 has 4 divisors (see below), whose sum is σ = 432977436. Its totient is φ = 384868800.

The previous prime is 408923093. The next prime is 408923129. The reversal of 408923117 is 711329804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188073796 + 220849321 = 13714^2 + 14861^2 .

It is a cyclic number.

It is not a de Polignac number, because 408923117 - 2⁸ = 408922861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408923017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12027134 + ... + 12027167.

It is an arithmetic number, because the mean of its divisors is an integer number (108244359).

Almost surely, 2^408923117 is an apocalyptic number.

It is an amenable number.

408923117 is a deficient number, since it is larger than the sum of its proper divisors (24054319).

408923117 is a wasteful number, since it uses less digits than its factorization.

408923117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24054318.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 408923117 is about 20221.8475169802. The cubic root of 408923117 is about 742.2448976451.

The spelling of 408923117 in words is "four hundred eight million, nine hundred twenty-three thousand, one hundred seventeen".