828090787 has 8 divisors (see below), whose sum is σ = 831482496. Its totient is φ = 824706432.

The previous prime is 828090773. The next prime is 828090803. The reversal of 828090787 is 787090828.

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 828090787 - 2¹⁹ = 827566499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 828090787.

It is not an unprimeable number, because it can be changed into a prime (828090187) 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, 341403 + ... + 343819.

It is an arithmetic number, because the mean of its divisors is an integer number (103935312).

Almost surely, 2^828090787 is an apocalyptic number.

828090787 is a deficient number, since it is larger than the sum of its proper divisors (3391709).

828090787 is a wasteful number, since it uses less digits than its factorization.

828090787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677.

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 828090787 is about 28776.5666298118. The cubic root of 828090787 is about 939.0585061704.

The spelling of 828090787 in words is "eight hundred twenty-eight million, ninety thousand, seven hundred eighty-seven".