6466393 has 2 divisors, whose sum is σ = 6466394. Its totient is φ = 6466392.

The previous prime is 6466367. The next prime is 6466399. The reversal of 6466393 is 3936646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5139289 + 1327104 = 2267^2 + 1152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6466393 is a prime.

6466393 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6466399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233196 + 3233197.

It is an arithmetic number, because the mean of its divisors is an integer number (3233197).

Almost surely, 2^6466393 is an apocalyptic number.

It is an amenable number.

6466393 is a deficient number, since it is larger than the sum of its proper divisors (1).

6466393 is an equidigital number, since it uses as much as digits as its factorization.

6466393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The square root of 6466393 is about 2542.9103405350. The cubic root of 6466393 is about 186.3033647363.

It can be divided in two parts, 6466 and 393, that added together give a cube (6859 = 19³).

The spelling of 6466393 in words is "six million, four hundred sixty-six thousand, three hundred ninety-three".