493678646 has 8 divisors (see below), whose sum is σ = 751570680. Its totient is φ = 243155088.

The previous prime is 493678637. The next prime is 493678667. The reversal of 493678646 is 646876394.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841951 + ... + 1842218.

It is an arithmetic number, because the mean of its divisors is an integer number (93946335).

Almost surely, 2^493678646 is an apocalyptic number.

493678646 is a deficient number, since it is larger than the sum of its proper divisors (257892034).

493678646 is a wasteful number, since it uses less digits than its factorization.

493678646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684238.

The product of its digits is 5225472, while the sum is 53.

The square root of 493678646 is about 22218.8803948354. The cubic root of 493678646 is about 790.3414888551.

The spelling of 493678646 in words is "four hundred ninety-three million, six hundred seventy-eight thousand, six hundred forty-six".