827318421 has 32 divisors (see below), whose sum is σ = 1271808000. Its totient is φ = 530964720.

The previous prime is 827318419. The next prime is 827318423. The reversal of 827318421 is 124813728.

827318421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (827318419) and next prime (827318423).

It is not a de Polignac number, because 827318421 - 2¹ = 827318419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827318423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164080 + ... + 169046.

It is an arithmetic number, because the mean of its divisors is an integer number (39744000).

Almost surely, 2^827318421 is an apocalyptic number.

It is an amenable number.

827318421 is a deficient number, since it is larger than the sum of its proper divisors (444489579).

827318421 is a wasteful number, since it uses less digits than its factorization.

827318421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206 (or 5200 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 827318421 is about 28763.1434478222. The cubic root of 827318421 is about 938.7664599009.

The spelling of 827318421 in words is "eight hundred twenty-seven million, three hundred eighteen thousand, four hundred twenty-one".