507807828 has 36 divisors (see below), whose sum is σ = 1400319648. Its totient is φ = 153881040.

The previous prime is 507807809. The next prime is 507807857. The reversal of 507807828 is 828708705.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640776 + ... + 641567.

It is an arithmetic number, because the mean of its divisors is an integer number (38897768).

Almost surely, 2^507807828 is an apocalyptic number.

It is an amenable number.

507807828 is an abundant number, since it is smaller than the sum of its proper divisors (892511820).

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

507807828 is a wasteful number, since it uses less digits than its factorization.

507807828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282364 (or 1282359 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 507807828 is about 22534.5918090388. The cubic root of 507807828 is about 797.8105906579.

The spelling of 507807828 in words is "five hundred seven million, eight hundred seven thousand, eight hundred twenty-eight".