3820687856 has 10 divisors (see below), whose sum is σ = 7402582752. Its totient is φ = 1910343920.

The previous prime is 3820687837. The next prime is 3820687859. The reversal of 3820687856 is 6587860283.

It is a junction number, because it is equal to n+sod(n) for n = 3820687798 and 3820687807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820687859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119396480 + ... + 119396511.

Almost surely, 2^3820687856 is an apocalyptic number.

It is an amenable number.

3820687856 is a deficient number, since it is larger than the sum of its proper divisors (3581894896).

3820687856 is a wasteful number, since it uses less digits than its factorization.

3820687856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238792999 (or 238792993 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 3820687856 is about 61811.7129353329. The cubic root of 3820687856 is about 1563.3174874950.

The spelling of 3820687856 in words is "three billion, eight hundred twenty million, six hundred eighty-seven thousand, eight hundred fifty-six".