6224391 has 16 divisors (see below), whose sum is σ = 9266400. Its totient is φ = 4129344.

The previous prime is 6224377. The next prime is 6224401. The reversal of 6224391 is 1934226.

6224391 is a `hidden beast` number, since 622 + 4 + 39 + 1 = 666.

It is not a de Polignac number, because 6224391 - 2⁵ = 6224359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6224791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6835 + ... + 7691.

It is an arithmetic number, because the mean of its divisors is an integer number (579150).

Almost surely, 2^6224391 is an apocalyptic number.

6224391 is a deficient number, since it is larger than the sum of its proper divisors (3042009).

6224391 is a wasteful number, since it uses less digits than its factorization.

6224391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1129 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 6224391 is about 2494.8729426566. The cubic root of 6224391 is about 183.9496455625.

The spelling of 6224391 in words is "six million, two hundred twenty-four thousand, three hundred ninety-one".