493557473 has 4 divisors (see below), whose sum is σ = 494340288. Its totient is φ = 492774660.

The previous prime is 493557469. The next prime is 493557499. The reversal of 493557473 is 374755394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 493557473 - 2² = 493557469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493557403) 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, 390461 + ... + 391722.

It is an arithmetic number, because the mean of its divisors is an integer number (123585072).

Almost surely, 2^493557473 is an apocalyptic number.

It is an amenable number.

493557473 is a deficient number, since it is larger than the sum of its proper divisors (782815).

493557473 is an equidigital number, since it uses as much as digits as its factorization.

493557473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782814.

The product of its digits is 1587600, while the sum is 47.

The square root of 493557473 is about 22216.1534249293. The cubic root of 493557473 is about 790.2768206839.

The spelling of 493557473 in words is "four hundred ninety-three million, five hundred fifty-seven thousand, four hundred seventy-three".