827365493 has 4 divisors (see below), whose sum is σ = 828799980. Its totient is φ = 825931008.

The previous prime is 827365471. The next prime is 827365501. The reversal of 827365493 is 394563728.

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 787195249 + 40170244 = 28057^2 + 6338^2 .

It is a cyclic number.

It is not a de Polignac number, because 827365493 - 2²² = 823171189 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 (827365433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716378 + ... + 717531.

It is an arithmetic number, because the mean of its divisors is an integer number (207199995).

Almost surely, 2^827365493 is an apocalyptic number.

It is an amenable number.

827365493 is a deficient number, since it is larger than the sum of its proper divisors (1434487).

827365493 is a wasteful number, since it uses less digits than its factorization.

827365493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434486.

The product of its digits is 1088640, while the sum is 47.

The square root of 827365493 is about 28763.9617055787. The cubic root of 827365493 is about 938.7842639191.

The spelling of 827365493 in words is "eight hundred twenty-seven million, three hundred sixty-five thousand, four hundred ninety-three".