3640337 has 4 divisors (see below), whose sum is σ = 3725040. Its totient is φ = 3555636.

The previous prime is 3640333. The next prime is 3640369. The reversal of 3640337 is 7330463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3640337 - 2² = 3640333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3640331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42287 + ... + 42372.

It is an arithmetic number, because the mean of its divisors is an integer number (931260).

Almost surely, 2^3640337 is an apocalyptic number.

It is an amenable number.

3640337 is a deficient number, since it is larger than the sum of its proper divisors (84703).

3640337 is an equidigital number, since it uses as much as digits as its factorization.

3640337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84702.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 3640337 is about 1907.9667187873. The cubic root of 3640337 is about 153.8321807117.

The spelling of 3640337 in words is "three million, six hundred forty thousand, three hundred thirty-seven".