3998255659 has 16 divisors (see below), whose sum is σ = 4154793984. Its totient is φ = 3843540000.

The previous prime is 3998255593. The next prime is 3998255689. The reversal of 3998255659 is 9565528993.

It is a cyclic number.

It is not a de Polignac number, because 3998255659 - 2¹³ = 3998247467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3998255597 and 3998255606.

It is not an unprimeable number, because it can be changed into a prime (3998255689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5323534 + ... + 5324284.

It is an arithmetic number, because the mean of its divisors is an integer number (259674624).

Almost surely, 2^3998255659 is an apocalyptic number.

3998255659 is a deficient number, since it is larger than the sum of its proper divisors (156538325).

3998255659 is a wasteful number, since it uses less digits than its factorization.

3998255659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its digits is 26244000, while the sum is 61.

The square root of 3998255659 is about 63231.7614731711. The cubic root of 3998255659 is about 1587.1702710234.

The spelling of 3998255659 in words is "three billion, nine hundred ninety-eight million, two hundred fifty-five thousand, six hundred fifty-nine".