6406913 has 2 divisors, whose sum is σ = 6406914. Its totient is φ = 6406912.

The previous prime is 6406879. The next prime is 6406919. The reversal of 6406913 is 3196046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6390784 + 16129 = 2528^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 6406913 - 2⁶ = 6406849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6406919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203456 + 3203457.

It is an arithmetic number, because the mean of its divisors is an integer number (3203457).

Almost surely, 2^6406913 is an apocalyptic number.

It is an amenable number.

6406913 is a deficient number, since it is larger than the sum of its proper divisors (1).

6406913 is an equidigital number, since it uses as much as digits as its factorization.

6406913 is an evil number, because the sum of its binary digits is even.

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

The square root of 6406913 is about 2531.1880609706. The cubic root of 6406913 is about 185.7303778392.

The spelling of 6406913 in words is "six million, four hundred six thousand, nine hundred thirteen".