3640199 has 4 divisors (see below), whose sum is σ = 3708936. Its totient is φ = 3571464.

The previous prime is 3640181. The next prime is 3640207. The reversal of 3640199 is 9910463.

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 3640199 - 2¹² = 3636103 is a prime.

It is a super-3 number, since 3×3640199³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640999) 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 3 ways as a sum of consecutive naturals, for example, 34289 + ... + 34394.

It is an arithmetic number, because the mean of its divisors is an integer number (927234).

Almost surely, 2^3640199 is an apocalyptic number.

3640199 is a deficient number, since it is larger than the sum of its proper divisors (68737).

3640199 is an equidigital number, since it uses as much as digits as its factorization.

3640199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68736.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 3640199 is about 1907.9305542917. The cubic root of 3640199 is about 153.8302368340.

The spelling of 3640199 in words is "three million, six hundred forty thousand, one hundred ninety-nine".