3855885723 has 24 divisors (see below), whose sum is σ = 5707782080. Its totient is φ = 2507001840.

The previous prime is 3855885721. The next prime is 3855885727. The reversal of 3855885723 is 3275885583.

It is a happy number.

3855885723 is a `hidden beast` number, since 3 + 8 + 5 + 588 + 57 + 2 + 3 = 666.

It is not a de Polignac number, because 3855885723 - 2¹ = 3855885721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3855885723.

It is not an unprimeable number, because it can be changed into a prime (3855885721) 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 in 23 ways as a sum of consecutive naturals, for example, 260208 + ... + 274626.

Almost surely, 2^3855885723 is an apocalyptic number.

3855885723 is a deficient number, since it is larger than the sum of its proper divisors (1851896357).

3855885723 is a wasteful number, since it uses less digits than its factorization.

3855885723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15159 (or 15156 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The square root of 3855885723 is about 62095.7786246376. The cubic root of 3855885723 is about 1568.1034780199.

The spelling of 3855885723 in words is "three billion, eight hundred fifty-five million, eight hundred eighty-five thousand, seven hundred twenty-three".