840512953 has 8 divisors (see below), whose sum is σ = 960785280. Its totient is φ = 720290400.

The previous prime is 840512909. The next prime is 840512969. The reversal of 840512953 is 359215048.

840512953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840512953 - 2¹³ = 840504761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (840522953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36693 + ... + 55021.

It is an arithmetic number, because the mean of its divisors is an integer number (120098160).

Almost surely, 2^840512953 is an apocalyptic number.

It is an amenable number.

840512953 is a deficient number, since it is larger than the sum of its proper divisors (120272327).

840512953 is a wasteful number, since it uses less digits than its factorization.

840512953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24887.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 840512953 is about 28991.6014217911. The cubic root of 840512953 is about 943.7308169251.

The spelling of 840512953 in words is "eight hundred forty million, five hundred twelve thousand, nine hundred fifty-three".