828158664 has 64 divisors (see below), whose sum is σ = 2099462400. Its totient is φ = 272206656.

The previous prime is 828158641. The next prime is 828158671. The reversal of 828158664 is 466851828.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543007 + ... + 544529.

It is an arithmetic number, because the mean of its divisors is an integer number (32804100).

Almost surely, 2^828158664 is an apocalyptic number.

It is an amenable number.

828158664 is an abundant number, since it is smaller than the sum of its proper divisors (1271303736).

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

828158664 is a wasteful number, since it uses less digits than its factorization.

828158664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1830 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The square root of 828158664 is about 28777.7459853964. The cubic root of 828158664 is about 939.0841630725.

The spelling of 828158664 in words is "eight hundred twenty-eight million, one hundred fifty-eight thousand, six hundred sixty-four".