827153493 has 4 divisors (see below), whose sum is σ = 1102871328. Its totient is φ = 551435660.

The previous prime is 827153447. The next prime is 827153507. The reversal of 827153493 is 394351728.

827153493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 827153493 - 2²⁶ = 760044629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827133493) 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, 137858913 + ... + 137858918.

It is an arithmetic number, because the mean of its divisors is an integer number (275717832).

Almost surely, 2^827153493 is an apocalyptic number.

It is an amenable number.

827153493 is a deficient number, since it is larger than the sum of its proper divisors (275717835).

827153493 is a wasteful number, since it uses less digits than its factorization.

827153493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275717834.

The product of its digits is 181440, while the sum is 42.

The square root of 827153493 is about 28760.2763025671. The cubic root of 827153493 is about 938.7040739398.

The spelling of 827153493 in words is "eight hundred twenty-seven million, one hundred fifty-three thousand, four hundred ninety-three".