493136723 has 4 divisors (see below), whose sum is σ = 499379040. Its totient is φ = 486894408.

The previous prime is 493136717. The next prime is 493136753. The reversal of 493136723 is 327631394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327631394 = 2 ⋅163815697.

It is a cyclic number.

It is not a de Polignac number, because 493136723 - 2¹⁴ = 493120339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493136713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121040 + ... + 3121197.

It is an arithmetic number, because the mean of its divisors is an integer number (124844760).

Almost surely, 2^493136723 is an apocalyptic number.

493136723 is a deficient number, since it is larger than the sum of its proper divisors (6242317).

493136723 is an equidigital number, since it uses as much as digits as its factorization.

493136723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242316.

The product of its digits is 81648, while the sum is 38.

The square root of 493136723 is about 22206.6819448561. The cubic root of 493136723 is about 790.0521906448.

The spelling of 493136723 in words is "four hundred ninety-three million, one hundred thirty-six thousand, seven hundred twenty-three".