70823903 has 2 divisors, whose sum is σ = 70823904. Its totient is φ = 70823902.

The previous prime is 70823899. The next prime is 70823941. The reversal of 70823903 is 30932807.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70823903 - 2² = 70823899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70823903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70823303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35411951 + 35411952.

It is an arithmetic number, because the mean of its divisors is an integer number (35411952).

Almost surely, 2^70823903 is an apocalyptic number.

70823903 is a deficient number, since it is larger than the sum of its proper divisors (1).

70823903 is an equidigital number, since it uses as much as digits as its factorization.

70823903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 70823903 is about 8415.6938513708. The cubic root of 70823903 is about 413.7391508733.

The spelling of 70823903 in words is "seventy million, eight hundred twenty-three thousand, nine hundred three".