828458385 has 64 divisors (see below), whose sum is σ = 1391815680. Its totient is φ = 420526080.

The previous prime is 828458383. The next prime is 828458447. The reversal of 828458385 is 583854828.

It is not a de Polignac number, because 828458385 - 2¹ = 828458383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828458383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5276727 + ... + 5276883.

It is an arithmetic number, because the mean of its divisors is an integer number (21747120).

Almost surely, 2^828458385 is an apocalyptic number.

It is an amenable number.

828458385 is a deficient number, since it is larger than the sum of its proper divisors (563357295).

828458385 is a wasteful number, since it uses less digits than its factorization.

828458385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378.

The product of its digits is 2457600, while the sum is 51.

The square root of 828458385 is about 28782.9530277906. The cubic root of 828458385 is about 939.1974381845.

The spelling of 828458385 in words is "eight hundred twenty-eight million, four hundred fifty-eight thousand, three hundred eighty-five".