3805398625 has 16 divisors (see below), whose sum is σ = 5427586944. Its totient is φ = 2609415600.

The previous prime is 3805398617. The next prime is 3805398659. The reversal of 3805398625 is 5268935083.

It is not a de Polignac number, because 3805398625 - 2³ = 3805398617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2173639 + ... + 2175388.

It is an arithmetic number, because the mean of its divisors is an integer number (339224184).

Almost surely, 2^3805398625 is an apocalyptic number.

3805398625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3805398625 is a deficient number, since it is larger than the sum of its proper divisors (1622188319).

3805398625 is an equidigital number, since it uses as much as digits as its factorization.

3805398625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349049 (or 4349039 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The square root of 3805398625 is about 61687.9131191841. The cubic root of 3805398625 is about 1561.2293926365.

The spelling of 3805398625 in words is "three billion, eight hundred five million, three hundred ninety-eight thousand, six hundred twenty-five".