3549664987 has 12 divisors (see below), whose sum is σ = 4086901656. Its totient is φ = 3057124320.

The previous prime is 3549664961. The next prime is 3549664999. The reversal of 3549664987 is 7894669453.

It is not a de Polignac number, because 3549664987 - 2²³ = 3541276379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3549664907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442978 + ... + 450919.

It is an arithmetic number, because the mean of its divisors is an integer number (340575138).

Almost surely, 2^3549664987 is an apocalyptic number.

3549664987 is a deficient number, since it is larger than the sum of its proper divisors (537236669).

3549664987 is a wasteful number, since it uses less digits than its factorization.

3549664987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893946 (or 893927 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 61.

The square root of 3549664987 is about 59579.0650060909. The cubic root of 3549664987 is about 1525.4423136224.

It can be divided in two parts, 354966 and 4987, that added together give a palindrome (359953).

The spelling of 3549664987 in words is "three billion, five hundred forty-nine million, six hundred sixty-four thousand, nine hundred eighty-seven".