3667189649 has 4 divisors (see below), whose sum is σ = 3702793536. Its totient is φ = 3631585764.

The previous prime is 3667189627. The next prime is 3667189651. The reversal of 3667189649 is 9469817663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3667189649 - 2¹² = 3667185553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3667189619) 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, 17801789 + ... + 17801994.

It is an arithmetic number, because the mean of its divisors is an integer number (925698384).

Almost surely, 2^3667189649 is an apocalyptic number.

It is an amenable number.

3667189649 is a deficient number, since it is larger than the sum of its proper divisors (35603887).

3667189649 is a wasteful number, since it uses less digits than its factorization.

3667189649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35603886.

The product of its digits is 11757312, while the sum is 59.

The square root of 3667189649 is about 60557.3253124674. The cubic root of 3667189649 is about 1542.0949798869.

The spelling of 3667189649 in words is "three billion, six hundred sixty-seven million, one hundred eighty-nine thousand, six hundred forty-nine".