828642047 has 8 divisors (see below), whose sum is σ = 851496096. Its totient is φ = 805812192.

The previous prime is 828642043. The next prime is 828642049. The reversal of 828642047 is 740246828.

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

It is a cyclic number.

It is not a de Polignac number, because 828642047 - 2² = 828642043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 828641995 and 828642013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828642043) 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, 79958 + ... + 89724.

It is an arithmetic number, because the mean of its divisors is an integer number (106437012).

Almost surely, 2^828642047 is an apocalyptic number.

828642047 is a deficient number, since it is larger than the sum of its proper divisors (22854049).

828642047 is a wasteful number, since it uses less digits than its factorization.

828642047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12097.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 828642047 is about 28786.1433158386. The cubic root of 828642047 is about 939.2668370172.

The spelling of 828642047 in words is "eight hundred twenty-eight million, six hundred forty-two thousand, forty-seven".