4663641 has 8 divisors (see below), whose sum is σ = 6488640. Its totient is φ = 2973872.

The previous prime is 4663621. The next prime is 4663643. The reversal of 4663641 is 1463664.

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 4663641 - 2⁷ = 4663513 is a prime.

4663641 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4663599 and 4663608.

It is not an unprimeable number, because it can be changed into a prime (4663643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33726 + ... + 33863.

It is an arithmetic number, because the mean of its divisors is an integer number (811080).

Almost surely, 2^4663641 is an apocalyptic number.

It is an amenable number.

4663641 is a deficient number, since it is larger than the sum of its proper divisors (1824999).

4663641 is a wasteful number, since it uses less digits than its factorization.

4663641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67615.

The product of its digits is 10368, while the sum is 30.

The square root of 4663641 is about 2159.5464801666. The cubic root of 4663641 is about 167.0738077182.

The spelling of 4663641 in words is "four million, six hundred sixty-three thousand, six hundred forty-one".