4651663 has 2 divisors, whose sum is σ = 4651664. Its totient is φ = 4651662.

The previous prime is 4651639. The next prime is 4651709. The reversal of 4651663 is 3661564.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4651663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4651063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2325831 + 2325832.

It is an arithmetic number, because the mean of its divisors is an integer number (2325832).

Almost surely, 2^4651663 is an apocalyptic number.

4651663 is a deficient number, since it is larger than the sum of its proper divisors (1).

4651663 is an equidigital number, since it uses as much as digits as its factorization.

4651663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 4651663 is about 2156.7714297069. The cubic root of 4651663 is about 166.9306487711.

Subtracting from 4651663 its reverse (3661564), we obtain a palindrome (990099).

The spelling of 4651663 in words is "four million, six hundred fifty-one thousand, six hundred sixty-three".