828065398 has 4 divisors (see below), whose sum is σ = 1242098100. Its totient is φ = 414032698.

The previous prime is 828065369. The next prime is 828065419. The reversal of 828065398 is 893560828.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207016348 + ... + 207016351.

It is an arithmetic number, because the mean of its divisors is an integer number (310524525).

Almost surely, 2^828065398 is an apocalyptic number.

828065398 is a deficient number, since it is larger than the sum of its proper divisors (414032702).

828065398 is a wasteful number, since it uses less digits than its factorization.

828065398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414032701.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 828065398 is about 28776.1254862429. The cubic root of 828065398 is about 939.0489089940.

The spelling of 828065398 in words is "eight hundred twenty-eight million, sixty-five thousand, three hundred ninety-eight".