70820243 has 32 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 59304960.

The previous prime is 70820231. The next prime is 70820263. The reversal of 70820243 is 34202807.

It is not a de Polignac number, because 70820243 - 2⁴ = 70820227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70820263) 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 31 ways as a sum of consecutive naturals, for example, 649673 + ... + 649781.

It is an arithmetic number, because the mean of its divisors is an integer number (2619540).

Almost surely, 2^70820243 is an apocalyptic number.

70820243 is a deficient number, since it is larger than the sum of its proper divisors (13005037).

70820243 is a wasteful number, since it uses less digits than its factorization.

70820243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 70820243 is about 8415.4763976854. The cubic root of 70820243 is about 413.7320237533.

The spelling of 70820243 in words is "seventy million, eight hundred twenty thousand, two hundred forty-three".