6280391 has 8 divisors (see below), whose sum is σ = 6785520. Its totient is φ = 5778432.

The previous prime is 6280367. The next prime is 6280397. The reversal of 6280391 is 1930826.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6280391 is a prime.

It is a super-2 number, since 2×6280391² = 78886622225762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6280397) 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, 4871 + ... + 6023.

It is an arithmetic number, because the mean of its divisors is an integer number (848190).

Almost surely, 2^6280391 is an apocalyptic number.

6280391 is a deficient number, since it is larger than the sum of its proper divisors (505129).

6280391 is a wasteful number, since it uses less digits than its factorization.

6280391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 6280391 is about 2506.0708290070. The cubic root of 6280391 is about 184.4996560438.

The spelling of 6280391 in words is "six million, two hundred eighty thousand, three hundred ninety-one".