827946381 has 8 divisors (see below), whose sum is σ = 1129601440. Its totient is φ = 539127792.

The previous prime is 827946347. The next prime is 827946391. The reversal of 827946381 is 183649728.

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

It is not a de Polignac number, because 827946381 - 2⁷ = 827946253 is a prime.

It is a super-2 number, since 2×827946381² = 1370990419621994322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 827946381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827946391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3208966 + ... + 3209223.

It is an arithmetic number, because the mean of its divisors is an integer number (141200180).

Almost surely, 2^827946381 is an apocalyptic number.

It is an amenable number.

827946381 is a deficient number, since it is larger than the sum of its proper divisors (301655059).

827946381 is a wasteful number, since it uses less digits than its factorization.

827946381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418235.

The product of its digits is 580608, while the sum is 48.

The square root of 827946381 is about 28774.0574302617. The cubic root of 827946381 is about 939.0039173226.

The spelling of 827946381 in words is "eight hundred twenty-seven million, nine hundred forty-six thousand, three hundred eighty-one".