1078387 has 2 divisors, whose sum is σ = 1078388. Its totient is φ = 1078386.

The previous prime is 1078373. The next prime is 1078393. The reversal of 1078387 is 7838701.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078387 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1078367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539193 + 539194.

It is an arithmetic number, because the mean of its divisors is an integer number (539194).

2^1078387 is an apocalyptic number.

1078387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078387 is an equidigital number, since it uses as much as digits as its factorization.

1078387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1078387 is about 1038.4541395748. The cubic root of 1078387 is about 102.5474537362.

The spelling of 1078387 in words is "one million, seventy-eight thousand, three hundred eighty-seven".