70203443 has 4 divisors (see below), whose sum is σ = 71165208. Its totient is φ = 69241680.

The previous prime is 70203433. The next prime is 70203457. The reversal of 70203443 is 34430207.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34430207 = 7 ⋅4918601.

It is a cyclic number.

It is not a de Polignac number, because 70203443 - 2¹⁴ = 70187059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70203433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480773 + ... + 480918.

It is an arithmetic number, because the mean of its divisors is an integer number (17791302).

Almost surely, 2^70203443 is an apocalyptic number.

70203443 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

70203443 is a deficient number, since it is larger than the sum of its proper divisors (961765).

70203443 is an equidigital number, since it uses as much as digits as its factorization.

70203443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961764.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 70203443 is about 8378.7494890347. The cubic root of 70203443 is about 412.5274041176.

The spelling of 70203443 in words is "seventy million, two hundred three thousand, four hundred forty-three".