3689359549 has 4 divisors (see below), whose sum is σ = 3691571740. Its totient is φ = 3687147360.

The previous prime is 3689359547. The next prime is 3689359559. The reversal of 3689359549 is 9459539863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9459539863 = 1667 ⋅5674589.

It can be written as a sum of positive squares in 2 ways, for example, as 921547449 + 2767812100 = 30357^2 + 52610^2 .

It is a cyclic number.

It is not a de Polignac number, because 3689359549 - 2¹ = 3689359547 is a prime.

It is a super-2 number, since 2×3689359549² = 27222747763594966802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689359543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103592 + ... + 1106929.

It is an arithmetic number, because the mean of its divisors is an integer number (922892935).

Almost surely, 2^3689359549 is an apocalyptic number.

It is an amenable number.

3689359549 is a deficient number, since it is larger than the sum of its proper divisors (2212191).

3689359549 is a wasteful number, since it uses less digits than its factorization.

3689359549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212190.

The product of its digits is 31492800, while the sum is 61.

The square root of 3689359549 is about 60740.0983617906. The cubic root of 3689359549 is about 1545.1963036810.

The spelling of 3689359549 in words is "three billion, six hundred eighty-nine million, three hundred fifty-nine thousand, five hundred forty-nine".