3644997 has 8 divisors (see below), whose sum is σ = 4895520. Its totient is φ = 2412240.

The previous prime is 3644983. The next prime is 3644999. The reversal of 3644997 is 7994463.

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

It is not a de Polignac number, because 3644997 - 2¹⁰ = 3643973 is a prime.

3644997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644999) 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, 3954 + ... + 4787.

It is an arithmetic number, because the mean of its divisors is an integer number (611940).

Almost surely, 2^3644997 is an apocalyptic number.

It is an amenable number.

3644997 is a deficient number, since it is larger than the sum of its proper divisors (1250523).

3644997 is a wasteful number, since it uses less digits than its factorization.

3644997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883.

The product of its digits is 163296, while the sum is 42.

The square root of 3644997 is about 1909.1875235293. The cubic root of 3644997 is about 153.8977929793.

The spelling of 3644997 in words is "three million, six hundred forty-four thousand, nine hundred ninety-seven".