493520691 has 4 divisors (see below), whose sum is σ = 658027592. Its totient is φ = 329013792.

The previous prime is 493520647. The next prime is 493520707. The reversal of 493520691 is 196025394.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 493520691 - 2⁷ = 493520563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493520641) 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, 82253446 + ... + 82253451.

It is an arithmetic number, because the mean of its divisors is an integer number (164506898).

Almost surely, 2^493520691 is an apocalyptic number.

493520691 is a deficient number, since it is larger than the sum of its proper divisors (164506901).

493520691 is a wasteful number, since it uses less digits than its factorization.

493520691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164506900.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 493520691 is about 22215.3255884311. The cubic root of 493520691 is about 790.2571886007.

The spelling of 493520691 in words is "four hundred ninety-three million, five hundred twenty thousand, six hundred ninety-one".