1093889639 has 2 divisors, whose sum is σ = 1093889640. Its totient is φ = 1093889638.

The previous prime is 1093889593. The next prime is 1093889647. The reversal of 1093889639 is 9369883901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1093889639 - 2²⁴ = 1077112423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093889659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546944819 + 546944820.

It is an arithmetic number, because the mean of its divisors is an integer number (546944820).

Almost surely, 2^1093889639 is an apocalyptic number.

1093889639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093889639 is an equidigital number, since it uses as much as digits as its factorization.

1093889639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 1093889639 is about 33074.0024641712. The cubic root of 1093889639 is about 1030.3651701078.

The spelling of 1093889639 in words is "one billion, ninety-three million, eight hundred eighty-nine thousand, six hundred thirty-nine".