828854638 has 8 divisors (see below), whose sum is σ = 1243404288. Its totient is φ = 414386544.

The previous prime is 828854633. The next prime is 828854659. The reversal of 828854638 is 836458828.

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

It is a super-2 number, since 2×828854638² = 1374000021868222088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828854633) 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, 27795 + ... + 49297.

It is an arithmetic number, because the mean of its divisors is an integer number (155425536).

Almost surely, 2^828854638 is an apocalyptic number.

828854638 is a deficient number, since it is larger than the sum of its proper divisors (414549650).

828854638 is a wasteful number, since it uses less digits than its factorization.

828854638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40778.

The product of its digits is 2949120, while the sum is 52.

The square root of 828854638 is about 28789.8356716394. The cubic root of 828854638 is about 939.3471542073.

It can be divided in two parts, 8288 and 54638, that added together give a palindrome (62926).

The spelling of 828854638 in words is "eight hundred twenty-eight million, eight hundred fifty-four thousand, six hundred thirty-eight".