6388261 has 8 divisors (see below), whose sum is σ = 7053984. Its totient is φ = 5736720.

The previous prime is 6388259. The next prime is 6388267. The reversal of 6388261 is 1628836.

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

It is not a de Polignac number, because 6388261 - 2¹ = 6388259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6388267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2586 + ... + 4411.

It is an arithmetic number, because the mean of its divisors is an integer number (881748).

Almost surely, 2^6388261 is an apocalyptic number.

It is an amenable number.

6388261 is a deficient number, since it is larger than the sum of its proper divisors (665723).

6388261 is a wasteful number, since it uses less digits than its factorization.

6388261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091.

The product of its digits is 13824, while the sum is 34.

The square root of 6388261 is about 2527.5009396635. The cubic root of 6388261 is about 185.5499680125.

The spelling of 6388261 in words is "six million, three hundred eighty-eight thousand, two hundred sixty-one".