493844479397 has 4 divisors (see below), whose sum is σ = 493999244256. Its totient is φ = 493689714540.

The previous prime is 493844479343. The next prime is 493844479459. The reversal of 493844479397 is 793974448394.

It is a happy number.

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 493844479397 - 2¹² = 493844475301 is a prime.

It is a super-3 number, since 3×493844479397³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493844479397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493846479397) 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, 77377643 + ... + 77384024.

It is an arithmetic number, because the mean of its divisors is an integer number (123499811064).

Almost surely, 2^493844479397 is an apocalyptic number.

It is an amenable number.

493844479397 is a deficient number, since it is larger than the sum of its proper divisors (154764859).

493844479397 is a wasteful number, since it uses less digits than its factorization.

493844479397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154764858.

The product of its digits is 658409472, while the sum is 71.

The spelling of 493844479397 in words is "four hundred ninety-three billion, eight hundred forty-four million, four hundred seventy-nine thousand, three hundred ninety-seven".