3640375 has 8 divisors (see below), whose sum is σ = 4543344. Its totient is φ = 2912200.

The previous prime is 3640369. The next prime is 3640379. The reversal of 3640375 is 5730463.

It is not a de Polignac number, because 3640375 - 2¹⁵ = 3607607 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 (3640379) 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 7 ways as a sum of consecutive naturals, for example, 14437 + ... + 14686.

It is an arithmetic number, because the mean of its divisors is an integer number (567918).

Almost surely, 2^3640375 is an apocalyptic number.

3640375 is a deficient number, since it is larger than the sum of its proper divisors (902969).

3640375 is an equidigital number, since it uses as much as digits as its factorization.

3640375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29138 (or 29128 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 3640375 is about 1907.9766770063. The cubic root of 3640375 is about 153.8327159737.

The spelling of 3640375 in words is "three million, six hundred forty thousand, three hundred seventy-five".