70000003 has 4 divisors (see below), whose sum is σ = 70162848. Its totient is φ = 69837160.

The previous prime is 69999989. The next prime is 70000027. The reversal of 70000003 is 30000007.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70000003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70000043) 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 3 ways as a sum of consecutive naturals, for example, 80776 + ... + 81637.

It is an arithmetic number, because the mean of its divisors is an integer number (17540712).

Almost surely, 2^70000003 is an apocalyptic number.

70000003 is a deficient number, since it is larger than the sum of its proper divisors (162845).

70000003 is a wasteful number, since it uses less digits than its factorization.

70000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162844.

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

The square root of 70000003 is about 8366.6004446250. The cubic root of 70000003 is about 412.1285358684.

The spelling of 70000003 in words is "seventy million, three", and thus it is an aban number and an uban number.