493778845 has 8 divisors (see below), whose sum is σ = 677182464. Its totient is φ = 338591184.

The previous prime is 493778833. The next prime is 493778861. The reversal of 493778845 is 548877394.

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 493778845 - 2⁷ = 493778717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7053949 + ... + 7054018.

It is an arithmetic number, because the mean of its divisors is an integer number (84647808).

Almost surely, 2^493778845 is an apocalyptic number.

It is an amenable number.

493778845 is a deficient number, since it is larger than the sum of its proper divisors (183403619).

493778845 is a wasteful number, since it uses less digits than its factorization.

493778845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14107979.

The product of its digits is 6773760, while the sum is 55.

The square root of 493778845 is about 22221.1350970197. The cubic root of 493778845 is about 790.3949555319.

The spelling of 493778845 in words is "four hundred ninety-three million, seven hundred seventy-eight thousand, eight hundred forty-five".