70303 has 4 divisors (see below), whose sum is σ = 70840. Its totient is φ = 69768.

The previous prime is 70297. The next prime is 70309. The reversal of 70303 is 30307.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (70297) and next prime (70309).

It is a cyclic number.

It is not a de Polignac number, because 70303 - 2⁵ = 70271 is a prime.

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

It is a Duffinian number.

70303 is a modest number, since divided by 303 gives 7 as remainder.

It is a plaindrome in base 13 and base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70303.

It is not an unprimeable number, because it can be changed into a prime (70309) 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, 76 + ... + 382.

It is an arithmetic number, because the mean of its divisors is an integer number (17710).

2⁷⁰³⁰³ is an apocalyptic number.

70303 is a deficient number, since it is larger than the sum of its proper divisors (537).

70303 is a wasteful number, since it uses less digits than its factorization.

70303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 63, while the sum is 13.

The square root of 70303 is about 265.1471289681. The cubic root of 70303 is about 41.2722316647.

It can be divided in two parts, 70 and 303, that added together give a palindrome (373).

The spelling of 70303 in words is "seventy thousand, three hundred three", and thus it is an iban number.