3654667 has 4 divisors (see below), whose sum is σ = 3780720. Its totient is φ = 3528616.

The previous prime is 3654647. The next prime is 3654671. The reversal of 3654667 is 7664563.

3654667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3654667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3654647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62983 + ... + 63040.

It is an arithmetic number, because the mean of its divisors is an integer number (945180).

Almost surely, 2^3654667 is an apocalyptic number.

3654667 is a deficient number, since it is larger than the sum of its proper divisors (126053).

3654667 is a wasteful number, since it uses less digits than its factorization.

3654667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126052.

The product of its digits is 90720, while the sum is 37.

The square root of 3654667 is about 1911.7183369942. The cubic root of 3654667 is about 154.0337672623.

The spelling of 3654667 in words is "three million, six hundred fifty-four thousand, six hundred sixty-seven".