3640067 has 4 divisors (see below), whose sum is σ = 3644256. Its totient is φ = 3635880.

The previous prime is 3640061. The next prime is 3640073. The reversal of 3640067 is 7600463.

3640067 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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (3640061) and next prime (3640073).

It is a cyclic number.

It is not a de Polignac number, because 3640067 - 2¹⁰ = 3639043 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640061) 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, 248 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (911064).

Almost surely, 2^3640067 is an apocalyptic number.

3640067 is a deficient number, since it is larger than the sum of its proper divisors (4189).

3640067 is a wasteful number, since it uses less digits than its factorization.

3640067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 3640067 is about 1907.8959615241. The cubic root of 3640067 is about 153.8283774268.

The spelling of 3640067 in words is "three million, six hundred forty thousand, sixty-seven".