3808431 has 16 divisors (see below), whose sum is σ = 6155520. Its totient is φ = 2307960.

The previous prime is 3808429. The next prime is 3808477. The reversal of 3808431 is 1348083.

It is not a de Polignac number, because 3808431 - 2¹ = 3808429 is a prime.

It is a super-2 number, since 2×3808431² = 29008293363522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3808395 and 3808404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808411) 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 15 ways as a sum of consecutive naturals, for example, 6115 + ... + 6708.

It is an arithmetic number, because the mean of its divisors is an integer number (384720).

Almost surely, 2^3808431 is an apocalyptic number.

3808431 is a deficient number, since it is larger than the sum of its proper divisors (2347089).

3808431 is a wasteful number, since it uses less digits than its factorization.

3808431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12843 (or 12837 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 3808431 is about 1951.5201766828. The cubic root of 3808431 is about 156.1643976976.

The spelling of 3808431 in words is "three million, eight hundred eight thousand, four hundred thirty-one".