78763 has 4 divisors (see below), whose sum is σ = 79840. Its totient is φ = 77688.

The previous prime is 78737. The next prime is 78779. The reversal of 78763 is 36787.

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 78763 - 2¹³ = 70571 is a prime.

It is a super-2 number, since 2×78763² = 12407220338, which contains 22 as substring.

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

It is a Duffinian number.

78763 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (78713) 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, 420 + ... + 577.

It is an arithmetic number, because the mean of its divisors is an integer number (19960).

2⁷⁸⁷⁶³ is an apocalyptic number.

78763 is a deficient number, since it is larger than the sum of its proper divisors (1077).

78763 is an equidigital number, since it uses as much as digits as its factorization.

78763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076.

The product of its digits is 7056, while the sum is 31.

The square root of 78763 is about 280.6474656932. The cubic root of 78763 is about 42.8654528859.

It can be divided in two parts, 78 and 763, that added together give a square (841 = 29²).

The spelling of 78763 in words is "seventy-eight thousand, seven hundred sixty-three".