70828243 has 2 divisors, whose sum is σ = 70828244. Its totient is φ = 70828242.

The previous prime is 70828231. The next prime is 70828253. The reversal of 70828243 is 34282807.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70828243 is a prime.

It is equal to p_4163875 and since 70828243 and 4163875 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 70828199 and 70828208.

It is not a weakly prime, because it can be changed into another prime (70828253) 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 as a sum of consecutive naturals, namely, 35414121 + 35414122.

It is an arithmetic number, because the mean of its divisors is an integer number (35414122).

Almost surely, 2^70828243 is an apocalyptic number.

70828243 is a deficient number, since it is larger than the sum of its proper divisors (1).

70828243 is an equidigital number, since it uses as much as digits as its factorization.

70828243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 70828243 is about 8415.9516990059. The cubic root of 70828243 is about 413.7476018396.

The spelling of 70828243 in words is "seventy million, eight hundred twenty-eight thousand, two hundred forty-three".