38646855 has 96 divisors (see below), whose sum is σ = 79369920. Its totient is φ = 17729280.

The previous prime is 38646841. The next prime is 38646913. The reversal of 38646855 is 55864683.

38646855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38646855 - 2⁸ = 38646599 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38646855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 633525 + ... + 633585.

It is an arithmetic number, because the mean of its divisors is an integer number (826770).

Almost surely, 2^38646855 is an apocalyptic number.

38646855 is an abundant number, since it is smaller than the sum of its proper divisors (40723065).

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

38646855 is a wasteful number, since it uses less digits than its factorization.

38646855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 101 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 38646855 is about 6216.6594727394. The cubic root of 38646855 is about 338.0944585035.

The spelling of 38646855 in words is "thirty-eight million, six hundred forty-six thousand, eight hundred fifty-five".