6464197 has 2 divisors, whose sum is σ = 6464198. Its totient is φ = 6464196.

The previous prime is 6464179. The next prime is 6464201. The reversal of 6464197 is 7914646.

Together with previous prime (6464179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6380676 + 83521 = 2526^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 6464197 - 2¹⁵ = 6431429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6464137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232098 + 3232099.

It is an arithmetic number, because the mean of its divisors is an integer number (3232099).

Almost surely, 2^6464197 is an apocalyptic number.

It is an amenable number.

6464197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6464197 is an equidigital number, since it uses as much as digits as its factorization.

6464197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 6464197 is about 2542.4785151501. The cubic root of 6464197 is about 186.2822726833.

It can be divided in two parts, 64 and 64197, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 6464197 in words is "six million, four hundred sixty-four thousand, one hundred ninety-seven".