850513406 has 8 divisors (see below), whose sum is σ = 1278526944. Its totient is φ = 424337760.

The previous prime is 850513393. The next prime is 850513409. The reversal of 850513406 is 604315058.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850513409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458315 + ... + 460166.

It is an arithmetic number, because the mean of its divisors is an integer number (159815868).

Almost surely, 2^850513406 is an apocalyptic number.

850513406 is a deficient number, since it is larger than the sum of its proper divisors (428013538).

850513406 is a wasteful number, since it uses less digits than its factorization.

850513406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918946.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 850513406 is about 29163.5629853418. The cubic root of 850513406 is about 947.4589177009.

The spelling of 850513406 in words is "eight hundred fifty million, five hundred thirteen thousand, four hundred six".