3640737 has 8 divisors (see below), whose sum is σ = 5139936. Its totient is φ = 2284352.

The previous prime is 3640717. The next prime is 3640753. The reversal of 3640737 is 7370463.

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 3640737 - 2¹⁴ = 3624353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3640717) 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, 35643 + ... + 35744.

It is an arithmetic number, because the mean of its divisors is an integer number (642492).

Almost surely, 2^3640737 is an apocalyptic number.

It is an amenable number.

3640737 is a deficient number, since it is larger than the sum of its proper divisors (1499199).

3640737 is a wasteful number, since it uses less digits than its factorization.

3640737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71407.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 3640737 is about 1908.0715395393. The cubic root of 3640737 is about 153.8378148621.

The spelling of 3640737 in words is "three million, six hundred forty thousand, seven hundred thirty-seven".