3669551 has 4 divisors (see below), whose sum is σ = 3679104. Its totient is φ = 3660000.

The previous prime is 3669529. The next prime is 3669553. The reversal of 3669551 is 1559663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3669551 - 2⁶ = 3669487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3669553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175 + ... + 4976.

It is an arithmetic number, because the mean of its divisors is an integer number (919776).

Almost surely, 2^3669551 is an apocalyptic number.

3669551 is a deficient number, since it is larger than the sum of its proper divisors (9553).

3669551 is an equidigital number, since it uses as much as digits as its factorization.

3669551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9552.

The product of its digits is 24300, while the sum is 35.

The square root of 3669551 is about 1915.6072144362. The cubic root of 3669551 is about 154.2425900525.

The spelling of 3669551 in words is "three million, six hundred sixty-nine thousand, five hundred fifty-one".