3689904005 has 8 divisors (see below), whose sum is σ = 4446259224. Its totient is φ = 2939673600.

The previous prime is 3689903993. The next prime is 3689904017. The reversal of 3689904005 is 5004099863.

It is an interprime number because it is at equal distance from previous prime (3689903993) and next prime (3689904017).

It can be written as a sum of positive squares in 4 ways, for example, as 437939329 + 3251964676 = 20927^2 + 57026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3689904005 - 2⁴ = 3689903989 is a prime.

It is a super-2 number, since 2×3689904005² = 27230783132230080050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529876 + ... + 1532285.

It is an arithmetic number, because the mean of its divisors is an integer number (555782403).

Almost surely, 2^3689904005 is an apocalyptic number.

It is an amenable number.

3689904005 is a deficient number, since it is larger than the sum of its proper divisors (756355219).

3689904005 is a wasteful number, since it uses less digits than its factorization.

3689904005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062407.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 3689904005 is about 60744.5800462889. The cubic root of 3689904005 is about 1545.2723105512.

The spelling of 3689904005 in words is "three billion, six hundred eighty-nine million, nine hundred four thousand, five".