3556667 has 4 divisors (see below), whose sum is σ = 3743880. Its totient is φ = 3369456.

The previous prime is 3556649. The next prime is 3556669. The reversal of 3556667 is 7666553.

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 3556667 - 2¹⁴ = 3540283 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 3556667.

It is not an unprimeable number, because it can be changed into a prime (3556669) 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, 93578 + ... + 93615.

It is an arithmetic number, because the mean of its divisors is an integer number (935970).

Almost surely, 2^3556667 is an apocalyptic number.

3556667 is a deficient number, since it is larger than the sum of its proper divisors (187213).

3556667 is a wasteful number, since it uses less digits than its factorization.

3556667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187212.

The product of its digits is 113400, while the sum is 38.

The square root of 3556667 is about 1885.9127763500. The cubic root of 3556667 is about 152.6444675955.

The spelling of 3556667 in words is "three million, five hundred fifty-six thousand, six hundred sixty-seven".