3549487685 has 8 divisors (see below), whose sum is σ = 4287972600. Its totient is φ = 2820531904.

The previous prime is 3549487651. The next prime is 3549487699. The reversal of 3549487685 is 5867849453.

It can be written as a sum of positive squares in 4 ways, for example, as 12687844 + 3536799841 = 3562^2 + 59471^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3549487685 - 2⁶ = 3549487621 is a prime.

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, 2381462 + ... + 2382951.

It is an arithmetic number, because the mean of its divisors is an integer number (535996575).

Almost surely, 2^3549487685 is an apocalyptic number.

It is an amenable number.

3549487685 is a deficient number, since it is larger than the sum of its proper divisors (738484915).

3549487685 is a wasteful number, since it uses less digits than its factorization.

3549487685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764567.

The product of its digits is 29030400, while the sum is 59.

The square root of 3549487685 is about 59577.5770319673. The cubic root of 3549487685 is about 1525.4169151245.

The spelling of 3549487685 in words is "three billion, five hundred forty-nine million, four hundred eighty-seven thousand, six hundred eighty-five".