70003 has 2 divisors, whose sum is σ = 70004. Its totient is φ = 70002.

The previous prime is 70001. The next prime is 70009. The reversal of 70003 is 30007.

70003 is nontrivially palindromic in base 6.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70003 - 2¹ = 70001 is a prime.

Together with 70001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35001 + 35002.

It is an arithmetic number, because the mean of its divisors is an integer number (35002).

2⁷⁰⁰⁰³ is an apocalyptic number.

70003 is a deficient number, since it is larger than the sum of its proper divisors (1).

70003 is an equidigital number, since it uses as much as digits as its factorization.

70003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21, while the sum is 10.

The square root of 70003 is about 264.5808005128. The cubic root of 70003 is about 41.2134417447.

The spelling of 70003 in words is "seventy thousand, three", and thus it is an iban number.