840070313 has 4 divisors (see below), whose sum is σ = 884284560. Its totient is φ = 795856068.

The previous prime is 840070277. The next prime is 840070327. The reversal of 840070313 is 313070048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 840070313 - 2¹⁰ = 840069289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (840070373) 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 in 3 ways as a sum of consecutive naturals, for example, 22107095 + ... + 22107132.

It is an arithmetic number, because the mean of its divisors is an integer number (221071140).

Almost surely, 2^840070313 is an apocalyptic number.

It is an amenable number.

840070313 is a deficient number, since it is larger than the sum of its proper divisors (44214247).

840070313 is a wasteful number, since it uses less digits than its factorization.

840070313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44214246.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 840070313 is about 28983.9664814877. The cubic root of 840070313 is about 943.5651219333.

The spelling of 840070313 in words is "eight hundred forty million, seventy thousand, three hundred thirteen".