6139887 has 8 divisors (see below), whose sum is σ = 8816304. Its totient is φ = 3778368.

The previous prime is 6139883. The next prime is 6139897. The reversal of 6139887 is 7889316.

6139887 is digitally balanced in base 3, 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 not a de Polignac number, because 6139887 - 2² = 6139883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78678 + ... + 78755.

It is an arithmetic number, because the mean of its divisors is an integer number (1102038).

Almost surely, 2^6139887 is an apocalyptic number.

6139887 is a deficient number, since it is larger than the sum of its proper divisors (2676417).

6139887 is a wasteful number, since it uses less digits than its factorization.

6139887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157449.

The product of its digits is 72576, while the sum is 42.

The square root of 6139887 is about 2477.8795370235. The cubic root of 6139887 is about 183.1133998096.

The spelling of 6139887 in words is "six million, one hundred thirty-nine thousand, eight hundred eighty-seven".