1093940399 has 2 divisors, whose sum is σ = 1093940400. Its totient is φ = 1093940398.

The previous prime is 1093940357. The next prime is 1093940437. The reversal of 1093940399 is 9930493901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1093940399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1093949399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546970199 + 546970200.

It is an arithmetic number, because the mean of its divisors is an integer number (546970200).

Almost surely, 2^1093940399 is an apocalyptic number.

1093940399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093940399 is an equidigital number, since it uses as much as digits as its factorization.

1093940399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 47.

The square root of 1093940399 is about 33074.7698253518. The cubic root of 1093940399 is about 1030.3811072814.

The spelling of 1093940399 in words is "one billion, ninety-three million, nine hundred forty thousand, three hundred ninety-nine".