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624997 is a prime number
BaseRepresentation
bin10011000100101100101
31011202100001
42120211211
5124444442
621221301
75212102
oct2304545
91152301
10624997
1139762a
12261831
1318b629
14123aa9
15c52b7
hex98965

624997 has 2 divisors, whose sum is σ = 624998. Its totient is φ = 624996.

The previous prime is 624983. The next prime is 625007. The reversal of 624997 is 799426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 599076 + 25921 = 774^2 + 161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-624997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312498 + 312499.

It is an arithmetic number, because the mean of its divisors is an integer number (312499).

2624997 is an apocalyptic number.

It is an amenable number.

624997 is a deficient number, since it is larger than the sum of its proper divisors (1).

624997 is an equidigital number, since it uses as much as digits as its factorization.

624997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 624997 is about 790.5675176732. The cubic root of 624997 is about 85.4986605355.

The spelling of 624997 in words is "six hundred twenty-four thousand, nine hundred ninety-seven".