846138494 has 4 divisors (see below), whose sum is σ = 1269207744. Its totient is φ = 423069246.

The previous prime is 846138487. The next prime is 846138523. The reversal of 846138494 is 494831648.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211534622 + ... + 211534625.

It is an arithmetic number, because the mean of its divisors is an integer number (317301936).

Almost surely, 2^846138494 is an apocalyptic number.

846138494 is a deficient number, since it is larger than the sum of its proper divisors (423069250).

846138494 is a wasteful number, since it uses less digits than its factorization.

846138494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423069249.

The product of its digits is 663552, while the sum is 47.

The square root of 846138494 is about 29088.4598079720. The cubic root of 846138494 is about 945.8315959335.

The spelling of 846138494 in words is "eight hundred forty-six million, one hundred thirty-eight thousand, four hundred ninety-four".