828779958 has 16 divisors (see below), whose sum is σ = 1841733360. Its totient is φ = 276259968.

The previous prime is 828779957. The next prime is 828779969. The reversal of 828779958 is 859977828.

It is a junction number, because it is equal to n+sod(n) for n = 828779895 and 828779904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828779957) 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, 7673835 + ... + 7673942.

It is an arithmetic number, because the mean of its divisors is an integer number (115108335).

Almost surely, 2^828779958 is an apocalyptic number.

828779958 is an abundant number, since it is smaller than the sum of its proper divisors (1012953402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

828779958 is a wasteful number, since it uses less digits than its factorization.

828779958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15347788 (or 15347782 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 63.

The square root of 828779958 is about 28788.5386569030. The cubic root of 828779958 is about 939.3189415593.

The spelling of 828779958 in words is "eight hundred twenty-eight million, seven hundred seventy-nine thousand, nine hundred fifty-eight".