3659405697 has 12 divisors (see below), whose sum is σ = 5288051860. Its totient is φ = 2438568288.

The previous prime is 3659405683. The next prime is 3659405707. The reversal of 3659405697 is 7965049563.

3659405697 is a `hidden beast` number, since 36 + 5 + 9 + 40 + 569 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2254730256 + 1404675441 = 47484^2 + 37479^2 .

It is not a de Polignac number, because 3659405697 - 2¹⁴ = 3659389313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3659405657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63598 + ... + 106599.

Almost surely, 2^3659405697 is an apocalyptic number.

It is an amenable number.

3659405697 is a deficient number, since it is larger than the sum of its proper divisors (1628646163).

3659405697 is a wasteful number, since it uses less digits than its factorization.

3659405697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172592 (or 172589 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The square root of 3659405697 is about 60493.0218868259. The cubic root of 3659405697 is about 1541.0031268698.

The spelling of 3659405697 in words is "three billion, six hundred fifty-nine million, four hundred five thousand, six hundred ninety-seven".