3640273 has 16 divisors (see below), whose sum is σ = 4533760. Its totient is φ = 2846016.

The previous prime is 3640249. The next prime is 3640289. The reversal of 3640273 is 3720463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3640273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3640223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9736 + ... + 10102.

It is an arithmetic number, because the mean of its divisors is an integer number (283360).

Almost surely, 2^3640273 is an apocalyptic number.

It is an amenable number.

3640273 is a deficient number, since it is larger than the sum of its proper divisors (893487).

3640273 is a wasteful number, since it uses less digits than its factorization.

3640273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 3640273 is about 1907.9499469326. The cubic root of 3640273 is about 153.8312792093.

The spelling of 3640273 in words is "three million, six hundred forty thousand, two hundred seventy-three".