827213837 has 4 divisors (see below), whose sum is σ = 863179680. Its totient is φ = 791247996.

The previous prime is 827213831. The next prime is 827213839. The reversal of 827213837 is 738312728.

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 827213837 - 2²⁶ = 760104973 is a prime.

It is a super-3 number, since 3×827213837³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 827213794 and 827213803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827213831) 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, 17982887 + ... + 17982932.

It is an arithmetic number, because the mean of its divisors is an integer number (215794920).

Almost surely, 2^827213837 is an apocalyptic number.

It is an amenable number.

827213837 is a deficient number, since it is larger than the sum of its proper divisors (35965843).

827213837 is a wasteful number, since it uses less digits than its factorization.

827213837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35965842.

The product of its digits is 112896, while the sum is 41.

The square root of 827213837 is about 28761.3253693219. The cubic root of 827213837 is about 938.7269007314.

The spelling of 827213837 in words is "eight hundred twenty-seven million, two hundred thirteen thousand, eight hundred thirty-seven".