3640297 has 8 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 3532560.

The previous prime is 3640289. The next prime is 3640309. The reversal of 3640297 is 7920463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3640297 - 2³ = 3640289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 5422.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^3640297 is an apocalyptic number.

It is an amenable number.

3640297 is a deficient number, since it is larger than the sum of its proper divisors (109463).

3640297 is an equidigital number, since it uses as much as digits as its factorization.

3640297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 3640297 is about 1907.9562363954. The cubic root of 3640297 is about 153.8316172740.

The spelling of 3640297 in words is "three million, six hundred forty thousand, two hundred ninety-seven".