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670965439 is a prime number
BaseRepresentation
bin100111111111100…
…001111010111111
31201202112120112211
4213333201322333
52333231343224
6150325041251
722425053314
oct4777417277
91652476484
10670965439
113148192a1
12168856227
13a9014991
146517ad0b
153dd89894
hex27fe1ebf

670965439 has 2 divisors, whose sum is σ = 670965440. Its totient is φ = 670965438.

The previous prime is 670965433. The next prime is 670965473. The reversal of 670965439 is 934569076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670965439 - 29 = 670964927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 670965392 and 670965401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670965433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335482719 + 335482720.

It is an arithmetic number, because the mean of its divisors is an integer number (335482720).

Almost surely, 2670965439 is an apocalyptic number.

670965439 is a deficient number, since it is larger than the sum of its proper divisors (1).

670965439 is an equidigital number, since it uses as much as digits as its factorization.

670965439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The square root of 670965439 is about 25903.0005790835. Note that the first 3 decimals coincide. The cubic root of 670965439 is about 875.4541050781.

The spelling of 670965439 in words is "six hundred seventy million, nine hundred sixty-five thousand, four hundred thirty-nine".