70878283 has 4 divisors (see below), whose sum is σ = 81003760. Its totient is φ = 60752808.

The previous prime is 70878281. The next prime is 70878323. The reversal of 70878283 is 38287807.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70878283 - 2¹ = 70878281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70878281) 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 3 ways as a sum of consecutive naturals, for example, 5062728 + ... + 5062741.

It is an arithmetic number, because the mean of its divisors is an integer number (20250940).

Almost surely, 2^70878283 is an apocalyptic number.

70878283 is a deficient number, since it is larger than the sum of its proper divisors (10125477).

70878283 is a wasteful number, since it uses less digits than its factorization.

70878283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10125476.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 70878283 is about 8418.9240999073. The cubic root of 70878283 is about 413.8450161631.

The spelling of 70878283 in words is "seventy million, eight hundred seventy-eight thousand, two hundred eighty-three".