6460391 has 12 divisors (see below), whose sum is σ = 7851312. Its totient is φ = 5189376.

The previous prime is 6460379. The next prime is 6460423. The reversal of 6460391 is 1930646.

It is not a de Polignac number, because 6460391 - 2²² = 2266087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6460331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27611 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (654276).

Almost surely, 2^6460391 is an apocalyptic number.

6460391 is a deficient number, since it is larger than the sum of its proper divisors (1390921).

6460391 is an equidigital number, since it uses as much as digits as its factorization.

6460391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 6460391 is about 2541.7299227101. The cubic root of 6460391 is about 186.2457056500.

The spelling of 6460391 in words is "six million, four hundred sixty thousand, three hundred ninety-one".