78903 has 12 divisors (see below), whose sum is σ = 124488. Its totient is φ = 47760.

The previous prime is 78901. The next prime is 78919. The reversal of 78903 is 30987.

It is a happy number.

It is not a de Polignac number, because 78903 - 2¹ = 78901 is a prime.

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

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300 + ... + 497.

It is an arithmetic number, because the mean of its divisors is an integer number (10374).

2⁷⁸⁹⁰³ is an apocalyptic number.

78903 is a deficient number, since it is larger than the sum of its proper divisors (45585).

78903 is a wasteful number, since it uses less digits than its factorization.

78903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 78903 is about 280.8967781944. The cubic root of 78903 is about 42.8908354101.

The spelling of 78903 in words is "seventy-eight thousand, nine hundred three".