788663 has 4 divisors (see below), whose sum is σ = 807048. Its totient is φ = 770280.

The previous prime is 788659. The next prime is 788677. The reversal of 788663 is 366887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366887 = 181 ⋅2027.

It is a cyclic number.

It is not a de Polignac number, because 788663 - 2² = 788659 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 (788603) 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, 9128 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (201762).

2⁷⁸⁸⁶⁶³ is an apocalyptic number.

788663 is a deficient number, since it is larger than the sum of its proper divisors (18385).

788663 is a wasteful number, since it uses less digits than its factorization.

788663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18384.

The product of its digits is 48384, while the sum is 38.

The square root of 788663 is about 888.0670019768. The cubic root of 788663 is about 92.3911746723.

The spelling of 788663 in words is "seven hundred eighty-eight thousand, six hundred sixty-three".