3870821076 has 48 divisors (see below), whose sum is σ = 9344079360. Its totient is φ = 1245864960.

The previous prime is 3870821047. The next prime is 3870821077. The reversal of 3870821076 is 6701280783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870821077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158620 + ... + 181388.

It is an arithmetic number, because the mean of its divisors is an integer number (194668320).

Almost surely, 2^3870821076 is an apocalyptic number.

It is an amenable number.

3870821076 is an abundant number, since it is smaller than the sum of its proper divisors (5473258284).

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

3870821076 is a wasteful number, since it uses less digits than its factorization.

3870821076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23264 (or 23262 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 3870821076 is about 62215.9230101105. The cubic root of 3870821076 is about 1570.1254955332.

The spelling of 3870821076 in words is "three billion, eight hundred seventy million, eight hundred twenty-one thousand, seventy-six".