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624331 is a prime number
BaseRepresentation
bin10011000011011001011
31011201102101
42120123023
5124434311
621214231
75210131
oct2303313
91151371
10624331
11397084
12261377
1318b236
14123751
15c4ec1
hex986cb

624331 has 2 divisors, whose sum is σ = 624332. Its totient is φ = 624330.

The previous prime is 624329. The next prime is 624347. The reversal of 624331 is 133426.

624331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 624331 - 21 = 624329 is a prime.

It is a super-2 number, since 2×6243312 = 779578395122, which contains 22 as substring.

Together with 624329, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 624299 and 624308.

It is not a weakly prime, because it can be changed into another prime (624311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312165 + 312166.

It is an arithmetic number, because the mean of its divisors is an integer number (312166).

2624331 is an apocalyptic number.

624331 is a deficient number, since it is larger than the sum of its proper divisors (1).

624331 is an equidigital number, since it uses as much as digits as its factorization.

624331 is an evil number, because the sum of its binary digits is even.

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

The square root of 624331 is about 790.1461890056. The cubic root of 624331 is about 85.4682804719.

Adding to 624331 its reverse (133426), we get a palindrome (757757).

The spelling of 624331 in words is "six hundred twenty-four thousand, three hundred thirty-one".