1078663 has 4 divisors (see below), whose sum is σ = 1096408. Its totient is φ = 1060920.

The previous prime is 1078657. The next prime is 1078673. The reversal of 1078663 is 3668701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1078663 - 2⁹ = 1078151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8781 + ... + 8902.

It is an arithmetic number, because the mean of its divisors is an integer number (274102).

2^1078663 is an apocalyptic number.

1078663 is a deficient number, since it is larger than the sum of its proper divisors (17745).

1078663 is an equidigital number, since it uses as much as digits as its factorization.

1078663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17744.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1078663 is about 1038.5870209087. The cubic root of 1078663 is about 102.5562015799.

The spelling of 1078663 in words is "one million, seventy-eight thousand, six hundred sixty-three".