3825700820 has 12 divisors (see below), whose sum is σ = 8033971764. Its totient is φ = 1530280320.

The previous prime is 3825700799. The next prime is 3825700831. The reversal of 3825700820 is 280075283.

It is a happy number.

3825700820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1759634704 + 2066066116 = 41948^2 + 45454^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95642501 + ... + 95642540.

It is an arithmetic number, because the mean of its divisors is an integer number (669497647).

Almost surely, 2^3825700820 is an apocalyptic number.

It is an amenable number.

3825700820 is an abundant number, since it is smaller than the sum of its proper divisors (4208270944).

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

3825700820 is a wasteful number, since it uses less digits than its factorization.

3825700820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191285050 (or 191285048 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 3825700820 is about 61852.2499186570. The cubic root of 3825700820 is about 1564.0009097484. Note that the first 3 decimals are identical.

The spelling of 3825700820 in words is "three billion, eight hundred twenty-five million, seven hundred thousand, eight hundred twenty".