6390261 has 12 divisors (see below), whose sum is σ = 9427392. Its totient is φ = 4169256.

The previous prime is 6390257. The next prime is 6390281. The reversal of 6390261 is 1620936.

It is a happy number.

6390261 is a `hidden beast` number, since 639 + 0 + 26 + 1 = 666.

It is not a de Polignac number, because 6390261 - 2² = 6390257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390211) 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 11 ways as a sum of consecutive naturals, for example, 7131 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (785616).

Almost surely, 2^6390261 is an apocalyptic number.

It is an amenable number.

6390261 is a deficient number, since it is larger than the sum of its proper divisors (3037131).

6390261 is a wasteful number, since it uses less digits than its factorization.

6390261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15160 (or 15157 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 6390261 is about 2527.8965564279. The cubic root of 6390261 is about 185.5693296309.

The spelling of 6390261 in words is "six million, three hundred ninety thousand, two hundred sixty-one".