491694934 has 16 divisors (see below), whose sum is σ = 743835600. Its totient is φ = 243756000.

The previous prime is 491694881. The next prime is 491694947. The reversal of 491694934 is 439496194.

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 in 7 ways as a sum of consecutive naturals, for example, 217309 + ... + 219559.

It is an arithmetic number, because the mean of its divisors is an integer number (46489725).

Almost surely, 2^491694934 is an apocalyptic number.

491694934 is a deficient number, since it is larger than the sum of its proper divisors (252140666).

491694934 is a wasteful number, since it uses less digits than its factorization.

491694934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135.

The product of its digits is 839808, while the sum is 49.

The square root of 491694934 is about 22174.1952277867. The cubic root of 491694934 is about 789.2814777552.

The spelling of 491694934 in words is "four hundred ninety-one million, six hundred ninety-four thousand, nine hundred thirty-four".