852776820 has 72 divisors (see below), whose sum is σ = 2956297344. Its totient is φ = 194920128.

The previous prime is 852776807. The next prime is 852776843. The reversal of 852776820 is 28677258.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337144 + ... + 339663.

Almost surely, 2^852776820 is an apocalyptic number.

It is an amenable number.

852776820 is an abundant number, since it is smaller than the sum of its proper divisors (2103520524).

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

852776820 is a wasteful number, since it uses less digits than its factorization.

852776820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676829 (or 676824 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 852776820 is about 29202.3427142413. The cubic root of 852776820 is about 948.2986427582.

The spelling of 852776820 in words is "eight hundred fifty-two million, seven hundred seventy-six thousand, eight hundred twenty".