820701012 has 24 divisors (see below), whose sum is σ = 1938043296. Its totient is φ = 270270688.

The previous prime is 820700987. The next prime is 820701017. The reversal of 820701012 is 210107028.

It is a self number, because there is not a number n which added to its sum of digits gives 820701012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820701017) 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, 411003 + ... + 412994.

It is an arithmetic number, because the mean of its divisors is an integer number (80751804).

Almost surely, 2^820701012 is an apocalyptic number.

It is an amenable number.

820701012 is an abundant number, since it is smaller than the sum of its proper divisors (1117342284).

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

820701012 is a wasteful number, since it uses less digits than its factorization.

820701012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824087 (or 824085 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 820701012 is about 28647.8797121183. The cubic root of 820701012 is about 936.2568100572.

The spelling of 820701012 in words is "eight hundred twenty million, seven hundred one thousand, twelve".