6406261 has 8 divisors (see below), whose sum is σ = 6554624. Its totient is φ = 6259680.

The previous prime is 6406247. The next prime is 6406307. The reversal of 6406261 is 1626046.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6406261 - 2¹⁷ = 6275189 is a prime.

It is a Duffinian number.

6406261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406861) 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, 8926 + ... + 9616.

It is an arithmetic number, because the mean of its divisors is an integer number (819328).

Almost surely, 2^6406261 is an apocalyptic number.

It is an amenable number.

6406261 is a deficient number, since it is larger than the sum of its proper divisors (148363).

6406261 is a wasteful number, since it uses less digits than its factorization.

6406261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6406261 is about 2531.0592644188. The cubic root of 6406261 is about 185.7240773367.

The spelling of 6406261 in words is "six million, four hundred six thousand, two hundred sixty-one".