3644463 has 8 divisors (see below), whose sum is σ = 4990768. Its totient is φ = 2363904.

The previous prime is 3644437. The next prime is 3644479.

3644463 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 3644463 - 2⁹ = 3643951 is a prime.

It is a super-2 number, since 2×3644463² = 26564221116738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3644463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644423) 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, 16306 + ... + 16527.

It is an arithmetic number, because the mean of its divisors is an integer number (623846).

Almost surely, 2^3644463 is an apocalyptic number.

3644463 is a deficient number, since it is larger than the sum of its proper divisors (1346305).

3644463 is a wasteful number, since it uses less digits than its factorization.

3644463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32873.

The product of its digits is 20736, while the sum is 30.

The square root of 3644463 is about 1909.0476683415. The cubic root of 3644463 is about 153.8902771583.

The spelling of 3644463 in words is "three million, six hundred forty-four thousand, four hundred sixty-three".