676285493 has 4 divisors (see below), whose sum is σ = 728307468. Its totient is φ = 624263520.

The previous prime is 676285453. The next prime is 676285513. The reversal of 676285493 is 394582676.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 314601169 + 361684324 = 17737^2 + 19018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676285493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676285403) 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, 26010968 + ... + 26010993.

It is an arithmetic number, because the mean of its divisors is an integer number (182076867).

Almost surely, 2^676285493 is an apocalyptic number.

It is an amenable number.

676285493 is a deficient number, since it is larger than the sum of its proper divisors (52021975).

676285493 is a wasteful number, since it uses less digits than its factorization.

676285493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52021974.

The product of its digits is 2177280, while the sum is 50.

The square root of 676285493 is about 26005.4896704523. The cubic root of 676285493 is about 877.7618282378.

The spelling of 676285493 in words is "six hundred seventy-six million, two hundred eighty-five thousand, four hundred ninety-three".