6406951 has 2 divisors, whose sum is σ = 6406952. Its totient is φ = 6406950.

The previous prime is 6406937. The next prime is 6406973. The reversal of 6406951 is 1596046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6406951 - 2⁵ = 6406919 is a prime.

It is a super-2 number, since 2×6406951² = 82098042232802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6406931) 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 as a sum of consecutive naturals, namely, 3203475 + 3203476.

It is an arithmetic number, because the mean of its divisors is an integer number (3203476).

Almost surely, 2^6406951 is an apocalyptic number.

6406951 is a deficient number, since it is larger than the sum of its proper divisors (1).

6406951 is an equidigital number, since it uses as much as digits as its factorization.

6406951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6406951 is about 2531.1955673160. The cubic root of 6406951 is about 185.7307450332.

The spelling of 6406951 in words is "six million, four hundred six thousand, nine hundred fifty-one".