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630613 is a prime number
BaseRepresentation
bin10011001111101010101
31012001001001
42121331111
5130134423
621303301
75234344
oct2317525
91161031
10630613
113a0875
12264b31
13191059
14125b5b
15c6cad
hex99f55

630613 has 2 divisors, whose sum is σ = 630614. Its totient is φ = 630612.

The previous prime is 630607. The next prime is 630659. The reversal of 630613 is 316036.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 1764 = 793^2 + 42^2 .

It is a cyclic number.

It is not a de Polignac number, because 630613 - 29 = 630101 is a prime.

630613 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315306 + 315307.

It is an arithmetic number, because the mean of its divisors is an integer number (315307).

2630613 is an apocalyptic number.

It is an amenable number.

630613 is a deficient number, since it is larger than the sum of its proper divisors (1).

630613 is an equidigital number, since it uses as much as digits as its factorization.

630613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 630613 is about 794.1114531349. Note that the first 3 decimals coincide. The cubic root of 630613 is about 85.7539841241.

Adding to 630613 its reverse (316036), we get a palindrome (946649).

The spelling of 630613 in words is "six hundred thirty thousand, six hundred thirteen".