64630 has 16 divisors (see below), whose sum is σ = 121824. Its totient is φ = 24640.

The previous prime is 64627. The next prime is 64633. The reversal of 64630 is 3646.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64627) and next prime (64633).

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 64598 and 64607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64633) 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, 90 + ... + 370.

It is an arithmetic number, because the mean of its divisors is an integer number (7614).

2⁶⁴⁶³⁰ is an apocalyptic number.

64630 is a deficient number, since it is larger than the sum of its proper divisors (57194).

64630 is a wasteful number, since it uses less digits than its factorization.

64630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 64630 is about 254.2243104032. The cubic root of 64630 is about 40.1308216758.

It can be divided in two parts, 646 and 30, that added together give a palindrome (676).

The spelling of 64630 in words is "sixty-four thousand, six hundred thirty".