828039077 has 8 divisors (see below), whose sum is σ = 914867136. Its totient is φ = 745446592.

The previous prime is 828039061. The next prime is 828039119. The reversal of 828039077 is 770930828.

It is a happy number.

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 828039077 - 2⁴ = 828039061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828039577) 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, 1058483 + ... + 1059264.

It is an arithmetic number, because the mean of its divisors is an integer number (114358392).

Almost surely, 2^828039077 is an apocalyptic number.

It is an amenable number.

828039077 is a deficient number, since it is larger than the sum of its proper divisors (86828059).

828039077 is a wasteful number, since it uses less digits than its factorization.

828039077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117787.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 828039077 is about 28775.6681416783. The cubic root of 828039077 is about 939.0389593096.

Subtracting from 828039077 its reverse (770930828), we obtain a square (57108249 = 7557²).

The spelling of 828039077 in words is "eight hundred twenty-eight million, thirty-nine thousand, seventy-seven".