399808103 has 8 divisors (see below), whose sum is σ = 417394176. Its totient is φ = 382239000.

The previous prime is 399808093. The next prime is 399808121. The reversal of 399808103 is 301808993.

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 399808103 - 2⁶ = 399808039 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 (399808133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78278 + ... + 83228.

It is an arithmetic number, because the mean of its divisors is an integer number (52174272).

Almost surely, 2^399808103 is an apocalyptic number.

399808103 is a deficient number, since it is larger than the sum of its proper divisors (17586073).

399808103 is a wasteful number, since it uses less digits than its factorization.

399808103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 399808103 is about 19995.2019994798. The cubic root of 399808103 is about 736.6884551156.

The spelling of 399808103 in words is "three hundred ninety-nine million, eight hundred eight thousand, one hundred three".