827971894 has 8 divisors (see below), whose sum is σ = 1295956080. Its totient is φ = 395986536.

The previous prime is 827971889. The next prime is 827971919. The reversal of 827971894 is 498179728.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 8999649 + ... + 8999740.

It is an arithmetic number, because the mean of its divisors is an integer number (161994510).

Almost surely, 2^827971894 is an apocalyptic number.

827971894 is a deficient number, since it is larger than the sum of its proper divisors (467984186).

827971894 is a wasteful number, since it uses less digits than its factorization.

827971894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999414.

The product of its digits is 2032128, while the sum is 55.

The square root of 827971894 is about 28774.5007602217. The cubic root of 827971894 is about 939.0135622953.

The spelling of 827971894 in words is "eight hundred twenty-seven million, nine hundred seventy-one thousand, eight hundred ninety-four".