827942545 has 4 divisors (see below), whose sum is σ = 993531060. Its totient is φ = 662354032.

The previous prime is 827942509. The next prime is 827942579. The reversal of 827942545 is 545249728.

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 458687889 + 369254656 = 21417^2 + 19216^2 .

It is a cyclic number.

It is not a de Polignac number, because 827942545 - 2⁷ = 827942417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 827942495 and 827942504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82794250 + ... + 82794259.

It is an arithmetic number, because the mean of its divisors is an integer number (248382765).

Almost surely, 2^827942545 is an apocalyptic number.

It is an amenable number.

827942545 is a deficient number, since it is larger than the sum of its proper divisors (165588515).

827942545 is a wasteful number, since it uses less digits than its factorization.

827942545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165588514.

The product of its digits is 806400, while the sum is 46.

The square root of 827942545 is about 28773.9907729185. The cubic root of 827942545 is about 939.0024671383.

The spelling of 827942545 in words is "eight hundred twenty-seven million, nine hundred forty-two thousand, five hundred forty-five".