38878861 has 8 divisors (see below), whose sum is σ = 44891840. Its totient is φ = 32980608.

The previous prime is 38878831. The next prime is 38878907. The reversal of 38878861 is 16887883.

38878861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38878861 - 2¹³ = 38870669 is a prime.

38878861 is a modest number, since divided by 78861 gives 388 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38878811) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27951 + ... + 29308.

It is an arithmetic number, because the mean of its divisors is an integer number (5611480).

Almost surely, 2^38878861 is an apocalyptic number.

It is an amenable number.

38878861 is a deficient number, since it is larger than the sum of its proper divisors (6012979).

38878861 is an equidigital number, since it uses as much as digits as its factorization.

38878861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57363.

The product of its digits is 516096, while the sum is 49.

The square root of 38878861 is about 6235.2915729740. The cubic root of 38878861 is about 338.7696622166.

The spelling of 38878861 in words is "thirty-eight million, eight hundred seventy-eight thousand, eight hundred sixty-one".