3898658309 has 32 divisors (see below), whose sum is σ = 5016453120. Its totient is φ = 2944953792.

The previous prime is 3898658299. The next prime is 3898658327. The reversal of 3898658309 is 9038568983.

It is a cyclic number.

It is not a de Polignac number, because 3898658309 - 2²⁴ = 3881881093 is a prime.

It is a super-2 number, since 2×3898658309² = 30399073220669478962, which contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898658359) 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 31 ways as a sum of consecutive naturals, for example, 1352732 + ... + 1355610.

It is an arithmetic number, because the mean of its divisors is an integer number (156764160).

Almost surely, 2^3898658309 is an apocalyptic number.

It is an amenable number.

3898658309 is a deficient number, since it is larger than the sum of its proper divisors (1117794811).

3898658309 is a wasteful number, since it uses less digits than its factorization.

3898658309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The square root of 3898658309 is about 62439.2369347993. The cubic root of 3898658309 is about 1573.8803913671.

The spelling of 3898658309 in words is "three billion, eight hundred ninety-eight million, six hundred fifty-eight thousand, three hundred nine".