493665431 has 8 divisors (see below), whose sum is σ = 597376800. Its totient is φ = 398251008.

The previous prime is 493665427. The next prime is 493665511. The reversal of 493665431 is 134566394.

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

It is a cyclic number.

It is not a de Polignac number, because 493665431 - 2² = 493665427 is a prime.

It is a super-2 number, since 2×493665431² = 487411115528831522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493665401) 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, 2074106 + ... + 2074343.

It is an arithmetic number, because the mean of its divisors is an integer number (74672100).

Almost surely, 2^493665431 is an apocalyptic number.

493665431 is a deficient number, since it is larger than the sum of its proper divisors (103711369).

493665431 is a wasteful number, since it uses less digits than its factorization.

493665431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148473.

The product of its digits is 233280, while the sum is 41.

The square root of 493665431 is about 22218.5830106242. The cubic root of 493665431 is about 790.3344367265.

The spelling of 493665431 in words is "four hundred ninety-three million, six hundred sixty-five thousand, four hundred thirty-one".