70003823 has 2 divisors, whose sum is σ = 70003824. Its totient is φ = 70003822.

The previous prime is 70003819. The next prime is 70003837. The reversal of 70003823 is 32830007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70003823 - 2² = 70003819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70003873) 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 as a sum of consecutive naturals, namely, 35001911 + 35001912.

It is an arithmetic number, because the mean of its divisors is an integer number (35001912).

Almost surely, 2^70003823 is an apocalyptic number.

70003823 is a deficient number, since it is larger than the sum of its proper divisors (1).

70003823 is an equidigital number, since it uses as much as digits as its factorization.

70003823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 70003823 is about 8366.8287301701. The cubic root of 70003823 is about 412.1360325460.

The spelling of 70003823 in words is "seventy million, three thousand, eight hundred twenty-three".