493665963 has 16 divisors (see below), whose sum is σ = 752593920. Its totient is φ = 281966976.

The previous prime is 493665959. The next prime is 493665973. The reversal of 493665963 is 369566394.

It is a happy number.

It is not a de Polignac number, because 493665963 - 2² = 493665959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493665973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61731 + ... + 69267.

It is an arithmetic number, because the mean of its divisors is an integer number (47037120).

Almost surely, 2^493665963 is an apocalyptic number.

493665963 is a deficient number, since it is larger than the sum of its proper divisors (258927957).

493665963 is a wasteful number, since it uses less digits than its factorization.

493665963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666.

The product of its digits is 3149280, while the sum is 51.

The square root of 493665963 is about 22218.5949825816. The cubic root of 493665963 is about 790.3347206285.

The spelling of 493665963 in words is "four hundred ninety-three million, six hundred sixty-five thousand, nine hundred sixty-three".