828891632 has 10 divisors (see below), whose sum is σ = 1605977568. Its totient is φ = 414445808.

The previous prime is 828891631. The next prime is 828891643. The reversal of 828891632 is 236198828.

It is a super-2 number, since 2×828891632² = 1374122675199246848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828891631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25902848 + ... + 25902879.

Almost surely, 2^828891632 is an apocalyptic number.

It is an amenable number.

828891632 is a deficient number, since it is larger than the sum of its proper divisors (777085936).

828891632 is a wasteful number, since it uses less digits than its factorization.

828891632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51805735 (or 51805729 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 828891632 is about 28790.4781481656. The cubic root of 828891632 is about 939.3611291916.

The spelling of 828891632 in words is "eight hundred twenty-eight million, eight hundred ninety-one thousand, six hundred thirty-two".