850398494 has 16 divisors (see below), whose sum is σ = 1439547120. Its totient is φ = 373215360.

The previous prime is 850398467. The next prime is 850398511. The reversal of 850398494 is 494893058.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 665819 + ... + 667094.

It is an arithmetic number, because the mean of its divisors is an integer number (89971695).

Almost surely, 2^850398494 is an apocalyptic number.

850398494 is a deficient number, since it is larger than the sum of its proper divisors (589148626).

850398494 is a wasteful number, since it uses less digits than its factorization.

850398494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332955.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 850398494 is about 29161.5927891465. The cubic root of 850398494 is about 947.4162457093.

The spelling of 850398494 in words is "eight hundred fifty million, three hundred ninety-eight thousand, four hundred ninety-four".