493811961 has 8 divisors (see below), whose sum is σ = 665814240. Its totient is φ = 325508832.

The previous prime is 493811959. The next prime is 493811977. The reversal of 493811961 is 169118394.

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

It is not a de Polignac number, because 493811961 - 2¹ = 493811959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493811911) 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, 924475 + ... + 925008.

It is an arithmetic number, because the mean of its divisors is an integer number (83226780).

Almost surely, 2^493811961 is an apocalyptic number.

It is an amenable number.

493811961 is a deficient number, since it is larger than the sum of its proper divisors (172002279).

493811961 is a wasteful number, since it uses less digits than its factorization.

493811961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849575.

The product of its digits is 46656, while the sum is 42.

The square root of 493811961 is about 22221.8802309796. The cubic root of 493811961 is about 790.4126248012.

The spelling of 493811961 in words is "four hundred ninety-three million, eight hundred eleven thousand, nine hundred sixty-one".