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1088639 is a prime number
BaseRepresentation
bin100001001110001111111
32001022022222
410021301333
5234314024
635155555
712152606
oct4116177
92038288
101088639
11683a02
12445bbb
132c1686
14204a3d
1516785e
hex109c7f

1088639 has 2 divisors, whose sum is σ = 1088640. Its totient is φ = 1088638.

The previous prime is 1088623. The next prime is 1088641. The reversal of 1088639 is 9368801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1088639 - 24 = 1088623 is a prime.

Together with 1088641, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1088599 and 1088608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544319 + 544320.

It is an arithmetic number, because the mean of its divisors is an integer number (544320).

21088639 is an apocalyptic number.

1088639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088639 is an equidigital number, since it uses as much as digits as its factorization.

1088639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1088639 is about 1043.3786465133. The cubic root of 1088639 is about 102.8713950893.

The spelling of 1088639 in words is "one million, eighty-eight thousand, six hundred thirty-nine".