1093639 has 2 divisors, whose sum is σ = 1093640. Its totient is φ = 1093638.

The previous prime is 1093637. The next prime is 1093657. The reversal of 1093639 is 9363901.

It is a weak prime.

It is an emirp because it is prime and its reverse (9363901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1093639 - 2¹ = 1093637 is a prime.

Together with 1093637, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1093639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546819 + 546820.

It is an arithmetic number, because the mean of its divisors is an integer number (546820).

2^1093639 is an apocalyptic number.

1093639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093639 is an equidigital number, since it uses as much as digits as its factorization.

1093639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1093639 is about 1045.7719636709. The cubic root of 1093639 is about 103.0286469474.

The spelling of 1093639 in words is "one million, ninety-three thousand, six hundred thirty-nine".