493284921 has 8 divisors (see below), whose sum is σ = 658279584. Its totient is φ = 328573440.

The previous prime is 493284917. The next prime is 493284931. The reversal of 493284921 is 129482394.

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

It is not a de Polignac number, because 493284921 - 2² = 493284917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493284901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66696 + ... + 73721.

It is an arithmetic number, because the mean of its divisors is an integer number (82284948).

Almost surely, 2^493284921 is an apocalyptic number.

It is an amenable number.

493284921 is a deficient number, since it is larger than the sum of its proper divisors (164994663).

493284921 is a wasteful number, since it uses less digits than its factorization.

493284921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141591.

The product of its digits is 124416, while the sum is 42.

The square root of 493284921 is about 22210.0184826578. The cubic root of 493284921 is about 790.1313251744.

The spelling of 493284921 in words is "four hundred ninety-three million, two hundred eighty-four thousand, nine hundred twenty-one".