78303 has 8 divisors (see below), whose sum is σ = 107008. Its totient is φ = 50904.

The previous prime is 78301. The next prime is 78307. The reversal of 78303 is 30387.

78303 is nontrivially palindromic in base 12.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78303 - 2¹ = 78301 is a prime.

It is a super-2 number, since 2×78303² = 12262719618, which contains 22 as substring.

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

It is a Duffinian number.

78303 is an undulating number in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 78303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175 + ... + 432.

It is an arithmetic number, because the mean of its divisors is an integer number (13376).

2⁷⁸³⁰³ is an apocalyptic number.

78303 is a deficient number, since it is larger than the sum of its proper divisors (28705).

78303 is a wasteful number, since it uses less digits than its factorization.

78303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 78303 is about 279.8267321040. The cubic root of 78303 is about 42.7818407840.

The spelling of 78303 in words is "seventy-eight thousand, three hundred three".