1078393 has 2 divisors, whose sum is σ = 1078394. Its totient is φ = 1078392.

The previous prime is 1078387. The next prime is 1078403. The reversal of 1078393 is 3938701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056784 + 21609 = 1028^2 + 147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1078333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539196 + 539197.

It is an arithmetic number, because the mean of its divisors is an integer number (539197).

2^1078393 is an apocalyptic number.

It is an amenable number.

1078393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078393 is an equidigital number, since it uses as much as digits as its factorization.

1078393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1078393 is about 1038.4570284802. The cubic root of 1078393 is about 102.5476439226.

The spelling of 1078393 in words is "one million, seventy-eight thousand, three hundred ninety-three".