1088894399 has 2 divisors, whose sum is σ = 1088894400. Its totient is φ = 1088894398.

The previous prime is 1088894393. The next prime is 1088894431. The reversal of 1088894399 is 9934988801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1088894399 - 2¹² = 1088890303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1088894393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544447199 + 544447200.

It is an arithmetic number, because the mean of its divisors is an integer number (544447200).

Almost surely, 2^1088894399 is an apocalyptic number.

1088894399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1088894399 is an equidigital number, since it uses as much as digits as its factorization.

1088894399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 59.

The square root of 1088894399 is about 32998.3999460580. The cubic root of 1088894399 is about 1028.7943913852.

The spelling of 1088894399 in words is "one billion, eighty-eight million, eight hundred ninety-four thousand, three hundred ninety-nine".